Tag: 100-200

α-Cyanostilbene functionalized carbazole derivatives exhibiting dual-state emission and multi-stimuli responsive fluorescent switching was written by Xue, Jie;Tang, Fang;Ding, Aixiang;He, Felicia;Huang, Jianyan;Kong, Lin;Yang, Jiaxiang. And the article was included in Journal of Luminescence in 2022.Application In Synthesis of 1-Bromopyrrolidine-2,5-dione This article mentions the following:

Interest in organic luminescent materials that show strong dual state emission (DSE) in both solution and the solid state is rapidly growing due to their widespread applications. The development of DSE luminogens (DSEgens) with multi-stimuli responsive properties capable of achieving multi-parameter detection in complicated environments remains challenging due to the lack of an explicit mol. design strategy. In this work, we devised and prepared two D-π-A-π-D-structured carbazole derivatives, PY-CZ-Pa and PY-CZ-Ta, with intramol. charge transfer (ICT) characteristics and excellent DSE properties. Both the compounds as fluorescent probes are highly sensitive to trace amount of water and picric acid (PA) in organic solvents. The limits of detection are determined to be 0.016% (PY-CZ-Pa) or 0.040% (PY-CZ-Ta) for water and 320 nM (PY-CZ-Pa) or 538 nM (PY-CZ-Ta) for PA. Moreover, the two compounds exhibit reversible mechanofluorochromism, with spectral shifts of over 24 nm. The results presented in this work suggest that bright DSEgens with multi-stimuli responsive properties are promising materials for applications at both the mol. and aggregated levels. In the experiment, the researchers used many compounds, for example, 1-Bromopyrrolidine-2,5-dione (cas: 128-08-5Application In Synthesis of 1-Bromopyrrolidine-2,5-dione).

1-Bromopyrrolidine-2,5-dione (cas: 128-08-5) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.Application In Synthesis of 1-Bromopyrrolidine-2,5-dione

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organocatalytic Asymmetric Dearomatizing Hetero-Diels-Alder Reaction of Nonactivated Arenes was written by Li, Kai;Huang, Shengli;Liu, Tianyu;Jia, Shiqi;Yan, Hailong. And the article was included in Journal of the American Chemical Society in 2022.Quality Control of 1-Bromopyrrolidine-2,5-dione This article mentions the following:

Nonactivated arenes, such as benzene derivatives, are chem. inert due to their intrinsic aromaticity and low polarity. The catalytic asym. dearomatization (CADA, coined by You and co-workers) of the nonactivated arenes represents a formidable challenge. Herein, the authors demonstrate an organocatalytic asym. dearomatizing hetero-Diels-Alder reaction of benzene derivatives The tunable regioselectivity of this strategy allowed delivery of a diversity of stereochem. complex polycyclic compounds, e.g., I, and oxahelicenes, e.g., II, with excellent stereoselectivity. The high complexity and three-dimensionality of the products were crucial for their potential applications in materials science and drug discovery. Mechanistic studies suggested that this reaction proceeded through a chiral tetra-substituted vinylidene ortho-quinone methide (VQM) intermediate, which was extremely active to overcome the loss of aromaticity of benzene derivatives with concomitant chirality transfer. In the experiment, the researchers used many compounds, for example, 1-Bromopyrrolidine-2,5-dione (cas: 128-08-5Quality Control of 1-Bromopyrrolidine-2,5-dione).

1-Bromopyrrolidine-2,5-dione (cas: 128-08-5) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon–bromine bond is electrophilic in nature. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Quality Control of 1-Bromopyrrolidine-2,5-dione

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Titanium isopropoxide-mediated cis-selective synthesis of 3,4-substituted butyrolactones from CO₂ was written by Sahari, Aleksi;Do, Cuong Dat;Mannisto, Jere K.;Antico, Emanuele;Amaratunga, Angelo;Hopmann, Kathrin H.;Repo, Timo. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2022.Name: 1-Bromo-4-methoxybutane This article mentions the following:

A Ti(OiPr)₄-mediated multicomponent reaction, which produced 3,4-substituted cis-δ-lactones from alkyl magnesium chloride, benzaldehyde and CO₂ was reported. The key intermediate, titanacyclopropane, was formed in-situ from Ti(OiPr)₄ and a Grignard reagent, which enabled 1,2-dinucleophilic reactivity that is used to insert carbon dioxide and an aldehyde. An alternative reaction route was also described where a primary alkene was used to create the titanacyclopropane. A computational anal. of the elementary steps showed that the carbon dioxide and the aldehyde insertion proceeded through an inner-sphere mechanism. A variety of cis-butyrolactones were synthesized with up to 7 : 1 diastereoselectivity and 77% yield. In the experiment, the researchers used many compounds, for example, 1-Bromo-4-methoxybutane (cas: 4457-67-4Name: 1-Bromo-4-methoxybutane).

1-Bromo-4-methoxybutane (cas: 4457-67-4) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon–bromine bond is electrophilic in nature. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.Name: 1-Bromo-4-methoxybutane

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

New oxidative reactions of monovinylsilanes with sulfonamides was written by Astakhova, Vera V.;Moskalik, Mikhail Yu.;Sterkhova, Irina V.;Shainyan, Bagrat A.. And the article was included in Journal of Organometallic Chemistry in 2022.Recommanded Product: 1-Bromopyrrolidine-2,5-dione This article mentions the following:

The reactions of sulfonamidation of functionally substituted vinylsilanes having Si-Ph, Si-Cl or Si-O bonds (triphenylvinylsilane, trimethoxy(vinyl)silane, trichlorovinylsilane, dichloromethylvinylsilane, tris(2-methoxyethoxy)vinylsilane) with trifluoromethanesulfonamide, arenesulfonamides and methanesulfonamide in the presence of (t-BuOCl + NaI) or N-bromosuccinimide proceed in different manner depending on the substrate, reagent, and oxidant. The formation of the products of halosulfonamidation, heterocyclization, halogenation, solvent interception and desilylation is observed In the experiment, the researchers used many compounds, for example, 1-Bromopyrrolidine-2,5-dione (cas: 128-08-5Recommanded Product: 1-Bromopyrrolidine-2,5-dione).

1-Bromopyrrolidine-2,5-dione (cas: 128-08-5) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Recommanded Product: 1-Bromopyrrolidine-2,5-dione

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Electrochemical reduction of several ortho-substituted nitro-benzenes by controlled potentials was written by Le Guyader, Michel;Tallec, Andre;Legoff, Raymond. And the article was included in Compt. Rend. in 1964.Product Details of 74440-80-5 This article mentions the following:

Nitrobenzenes having an o-halo substituent are reducible, in acid media and with a Hg cathode, to the corresponding amines and hydroxylamines; the latter are capable of Gattermann rearrangement. The following results were obtained [compound reduced, temperature, electrolyte, electrode potential (mv. vs. calomel reference electrode) product obtained, m.p.]: 2-RC₆H₄NO₂ (I) (R = F), <20°, 0.5N H₂SO₄, -350, 2-RC₆H₄NHOH (II) (R = F), 90° (petr. ether); I (R = F), 25°, N H₂SO₄, -900, 2-RC₆H₄NH₂ (III) (R = F), — (Bz derivative m. 110°); I (R = F), 90°, 25% H₂SO₄, -100, 3,4-R(H₂N)C₆H₃OH (IV) (R = F), — (O,N-di-Bz derivative m. 170°); I(R = Cl), 25°, NH₂SO₄, -350, II(R = Cl),– (picrate m. 179°); I (R = Cl), 40°, 10% EtOH-N H₂SO₄, -850, III(R = Cl), — (Bz derivative m. 100°); I (R = Cl), 90°, 25% H₂SO₄, -100°, IV (R = Cl), 160° (O,N-di-Ac derivative m. 122°); I (R = Br), 20°, 10% EtOH-N H₂SO₄, -350, II (R = Br), — (HBr salt m. 170°); I (R = Br), 40°, 10% EtOHN H₂SO₄, -850, III (R = Br), — (Ac derivative m. 96°); I (R = Br), 90°, 50% H₂SO₄, -100, IV (R = Br), 153° (O,N-di-Ac derivative m. 125°); I (R = iodine), 20°, 50% EtOH-N H₂SO₄, -350, II (R = iodine), 60° (petr. ether); I (R = iodine), 93°, 20% H₂SO₄, -150, IV (R = iodine), 150°; 2-O₂NC₆H₄CO₂Et (V), 15°, 50% EtOH-N H₂SO₄, -250, II (R = EtO₂C) (VI), 77°; V, 15°, 15% EtOH-N H₂SO₄, -850, III (R = EtO₂C), — (Ac derivative m. 62°); VI, 60°, ≤2N H₂SO₄, -150, VII, 118°; VI, 80°, ≥5N H₂SO₄, -150, 2,5-H₂N(HO)C₆H₃CO₂H (VIII), 248° (under intermediate conditions, a mixture of VIII and its Et ester, m. 145°, was obtained); 2-O₂NC₆H₄CONH₂ (IX), 25°, N H₂SO₄, -350, VII, 118°; and IX, 25°, N H₂SO₄, -1100, 2-H₂NC₆H₄CO₂H, 145°. In the experiment, the researchers used many compounds, for example, 4-Amino-3-bromophenol (cas: 74440-80-5Product Details of 74440-80-5).

4-Amino-3-bromophenol (cas: 74440-80-5) belongs to organobromine compounds. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon–bromine bond is electrophilic, i.e. alkyl bromides are alkylating agents. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.Product Details of 74440-80-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Halogenation. XXIII. Halogenation of fluorobenzene, o-, m- and p-fluorotoluenes was written by Varma, P. S.;Venkat Raman, K. S.;Nilkantiah, P. M.. And the article was included in Journal of the Indian Chemical Society in 1944.Product Details of 452-62-0 This article mentions the following:

PhF (I) (10 cc.) treated with 1 mol. Cl (II) and 0.5 g. Fe powder, with occasional shaking, yields p-chlorofluorobenzene (III), b. 130°, while with 2 mols. II, it gives III and a mixture of 2,4- and 3,4-dichlorofluorobenzenes, b. 169-75°. The same mixture is obtained from III with 1 mol. II. FC₆H₄Br (15 g.), 1 g. Fe powder and 4.5 cc. Br (IV), yield, upon refluxing for 8 hrs., 5.8 g. 3,4-dibromofluorobenzene, needles (alc.), m. 69°, and 2,4-dibromofluorobenzene (V), b₃₂ 103-5°, b₇₅₆ 214-16°. I, iodine and NaNO₂ in CCl₄ refluxed for 4 hrs. after adding fuming H₂SO₄ dropwise during 1 hr., give p-iodofluorobenzene (VI), light brown oil, b₇₅₈ 178-81°. Similarly, m-fluorotoluene (VII) yields 3-fluoro-6-iodotoluene, b₉ 138-9° and 3-fluoro-4-iodotoluene, b₉ 138-9°, and o-fluorotoluene (VIII) gives 2-fluoro-5-iodotoluene (IX), light yellowish, b₈ 85°, and 2-fluoro-6-iodotoluene (X), b₈ 114-16°. VI, upon refluxing at 200-20° for 6 hrs. with Cu bronze, gives 4,4′-difluorobiphenyl, m. 89°. II (1.3 mols.) bubbled through VIII and Fe powder for 5-6 hrs. yields X, b₇₅₂ 151-2°, which yields the corresponding benzoic acid, m. 159°, upon oxidation, and a product (XI), b₇₅₂ 157-9° found to be identical with the product (XII) obtained by treating diazotized 2-fluoro-5-aminotoluene (XIII) with CuCl. Both XI and XII give 2-fluoro-5-chlorobenzoic acid, m. 168°, upon oxidation. IV in CCl₄ added dropwise, under cooling, to VII in CCl₄, in the presence of Fe powder, yields, after standing overnight, 3-fluoro-4-bromotoluene, b₇₅₆ 169°, and 3-fluoro-6-bromotoluene, b₇₅₆ 177°, the latter giving 3-fluoro-6-bromobenzoic acid, needles, m. 151°, upon oxidation with alk. KMnO₄. Similarly, p-FC₆H₄Me yields 4-fluoro-3-bromotoluene, b₇₅₇ 174-7°, and 4-fluoro-3-bromobenzoic acid, white, m. 156°. VIII treated with fuming HNO₃ gives 2-fluoro-5- (XIV) and -6-nitrotoluenes. Reduction of XIV yields 2-fluoro-5-aminotoluene, brownish black, b₉ 85-6° (HCl salt, m. 220° (decomposition)), which upon diazotization and treatment with KI yields IX, b₉ 86-7°. 2-Fluoro-6-aminotoluene gives by the same process X, b₉ 117°. o-, m- and p-Fluorobenzyl iodides, b₈ 91°, b₁₂ 98° and b₉ 102-3°, resp., were obtained by refluxing the corresponding benzyl chloride or bromide with KI in acetone for 4-5 hrs. VII treated with 2 mols. II, followed by heating for 6 hrs. on a sand bath, gives m-fluorobenzyl chloride, b₇₅₆ 176°, and m-fluorobenzal chloride, b₇₅₆ 195-7°, while with IV it gives m-fluorobenzal bromide, b₈ 108-10°. Similarly, o- and m-fluorobenzal chlorobromides, b₇ 109-10°, and b₇₅₆ 228-30°, b₉ 111-13°, resp., were obtained from the corresponding fluorobenzyl bromide. In the experiment, the researchers used many compounds, for example, 3-Bromo-4-fluorotoluene (cas: 452-62-0Product Details of 452-62-0).

3-Bromo-4-fluorotoluene (cas: 452-62-0) belongs to organobromine compounds. Most of the natural organobromine compounds are produced by marine organisms, and several brominated metabolites with antibacterial, antitumor, antiviral, and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.Product Details of 452-62-0

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Polymer-anchored peroxo compounds of molybdenum and tungsten as efficient and versatile catalysts for mild oxidative bromination was written by Boruah, Jeena Jyoti;Das, Siva Prasad;Borah, Rupam;Gogoi, Sandhya Rani;Islam, Nashreen S.. And the article was included in Polyhedron in 2013.COA of Formula: C6H6BrNO This article mentions the following:

A polymer supported peroxomolybdate(VI) compound [MoO₂(O₂)(CN)₂]-PAN [PAN = poly(acrylonitrile)] (PANMo) was obtained by reacting H₂MoO₄ with 30% H₂O₂ and the macromol. ligand, PAN at near neutral pH. The macrocomplex was characterized by elemental anal. (CHN and EDX anal.), spectral (IR, UV-visible and ¹³C NMR, ⁹⁵Mo NMR), thermal (TGA-DTG) as well as SEM studies. The catalytic activity of PANMo and its previously reported tungsten containing analog PANW, in oxidative bromination of organic substrates was explored. The supported complexes could serve as efficient heterogeneous catalysts for the oxidative bromination of a variety of structurally diverse aromatic compounds, with H₂O₂ as terminal oxidant, to afford bromo organics in impressive yields under environmentally clean conditions. The catalysts afforded regeneration and could be reused for a min. of six reaction cycles. In the experiment, the researchers used many compounds, for example, 4-Amino-3-bromophenol (cas: 74440-80-5COA of Formula: C6H6BrNO).

4-Amino-3-bromophenol (cas: 74440-80-5) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.COA of Formula: C6H6BrNO

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Derivatives of Hexamethylene Glycol, HO.(CH₂)₆OH; Heptamethylene Glycol was written by Dionneau, R.. And the article was included in Compt. rend. in 1907.Related Products of 50592-87-5 This article mentions the following:

The bromethers of hexamethylene glycol, RO(CH₂)₃Br, are not formed in a smooth manner by treatment of the diethers of hexamethylene glycol. RO(CH₂)₅OR (Ibid., 142, 91) with HBr. 1,6-Dibromhexane reacts smoothly with the calculated amount of sodium methylate giving the bromether CH₃O(CH₂)₆Br, yield 70% of theoretical, b₃₃ 112°; D₂₇, 1.194. The magnesium compound, CH₃O(CH₃)₆Br.Mg, and bromethyl ether, BrCH₂OCH₂ react giving the dimethyl ether of heptamethylene glycol, CH₂O(CH₂)₇OCH₃. Treatment of this diether with HBr gives 1,7-dibromheptane Br(CH₂)₇Br; b₃₃ 156°. 1,7-Diphenoxyheptane, C₆H₃O(CH₂)₇OC₆H₂; m. 53°. Acetate of Heptamethylene Glycol, CH₃CO₂(CH₂)₇CO₂CH₃; b. 270°; D₁₅, 1.01. Heptamethylene Glycol, HO(CH₂)₇OH, b₂₅ 172°, b. 259°, m. 19°; very soluble in water and alcohol, difficultly soluble in ether. In the experiment, the researchers used many compounds, for example, 1-Bromo-6-methoxyhexane (cas: 50592-87-5Related Products of 50592-87-5).

1-Bromo-6-methoxyhexane (cas: 50592-87-5) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon–bromine bond is electrophilic in nature. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Related Products of 50592-87-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Polaron Delocalization Dependence of the Conductivity and the Seebeck Coefficient in Doped Conjugated Polymers was written by DexterTam, Teck Lip;Moudgil, Akshay;Teh, Wei Jie;Wong, Zicong Marvin;Handoko, Albertus Denny;Chien, Sheau Wei;Yang, Shuo-Wang;Yeo, Boon Siang;Leong, Wei Lin;Xu, Jianwei. And the article was included in Journal of Physical Chemistry B in 2022.Recommanded Product: 128-08-5 This article mentions the following:

Conjugated polymers are promising materials for thermoelecs. as they offer good performances at near ambient temperatures The current focus on polymer thermoelec. research mainly targets a higher power factor (PF; a product of the conductivity and square of the Seebeck coefficient) through improving the charge mobility. This is usually accomplished via structural modification in conjugated polymers using different processing techniques and doping. As a result, the structure-charge transport relationship in conjugated polymers is generally well-established. In contrast, the relationship between the structure and the Seebeck coefficient is poorly understood due to its complex nature. A theor. framework by David Emin (Phys. Rev. B, 1999,59, 6205-6210) suggests that the Seebeck coefficient can be enhanced via carrier-induced vibrational softening, whose magnitude is governed by the size of the polaron. In this work, we seek to unravel this relationship in conjugated polymers using a series of highly identical pro-quinoid polymers. These polymers are ideal to test Emin′s framework exptl. as the quinoid character and polaron delocalization in these polymers can be well controlled even by small at. differences (<10 at. % per repeating unit). By increasing the polaron delocalization, i.e., the polaron size, we demonstrate that both the conductivity and the Seebeck coefficient (and hence PF) can be increased simultaneously, and the latter is due to the increase in the polaron′s vibrational entropy. By using literature data, we also show that this phenomenon can be observed in two closely related diketopyrrolopyrrole-conjugated polymers as well as in p-doped P3HT and PANI systems with an increasing mol. order. In the experiment, the researchers used many compounds, for example, 1-Bromopyrrolidine-2,5-dione (cas: 128-08-5Recommanded Product: 128-08-5).

1-Bromopyrrolidine-2,5-dione (cas: 128-08-5) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Recommanded Product: 128-08-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Novel phthalide derivatives: synthesis and anti-inflammatory activity in vitro and in vivo was written by Chen, Liu Zeng;Wu, Jing;Li, Kang;Wu, Qian Qian;Chen, Rui;Liu, Xin Hua;Ruan, Ban Feng. And the article was included in European Journal of Medicinal Chemistry in 2020.COA of Formula: C5H11BrO This article mentions the following:

A three series (total of 31) novel phthalide derivatives I (R¹ = Me, Ph, PhCH₂, 4-PhC₆H₄, 4-PhOC₆H₄), II (R² = H, Et, MeOCH₂CH₂, 4-BrC₆H₄CH₂, etc.) and III (R³ = Me, PhCH₂, 4-FC₆H₄CH₂) were designed and synthesized, and their anti-inflammatory activities were screened in-vitro and in-vivo. The anti-inflammatory activity of all the compounds I, II and III were screened on LPS induced NO production to evaluating their inhibitory effects. Structure-activity relationship was studied, and finally compound II [R² = 4-FC₆H₄CH₂; (IV)] was found to be the active one with low toxicity, which showed 95.23% inhibitory rate at 10μM with IC₅₀ value of 0.76μM against LPS-induced NO over expression. Preliminary mechanism studies indicated that compound IV activated Nrf2/HO-1 signaling pathway via accumulation ROS and blocks the NF-κB/MAPK signaling pathway. The in-vivo anti-inflammatory activity shown that compound IV had obvious therapeutic effect against the adjuvant-induced rat arthritis model. In the experiment, the researchers used many compounds, for example, 1-Bromo-4-methoxybutane (cas: 4457-67-4COA of Formula: C5H11BrO).

1-Bromo-4-methoxybutane (cas: 4457-67-4) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.COA of Formula: C5H11BrO

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary