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Elguero, Jose’s team published research in Bulletin de la Societe Chimique de France in 1969 | 3893-18-3

Bulletin de la Societe Chimique de France published new progress about Azines Role: RCT (Reactant), RACT (Reactant or Reagent). 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Formula: C9H7BrO.

Elguero, Jose; Jacquier, Robert; Marzin, Claude published the artcile< Synthesis of azines from α,β-unsaturated β-(p-bromophenyl) carbonyl compounds>, Formula: C9H7BrO, the main research area is azines alkenyl; cinnamaldehydes azines; phenyl oxoalkenes; alkenones Ph; alkenals Ph.

Reduction of p-BrC6H4Ac with LiAlH4 gave 82% p-BrC6H4CHMeOH, b16 135-6°, which was dehydrated over K pyrosulfate to p-BrC6H4CH:CH2, b15 90°, and converted to p-BrC6H4CH:CHCHO (I), m. 79-80°, by known methods. p-BrC6H4CHO and acetone yielded 30% p-BrC6H4CH:CHAc (II), m. 78-80° (2,4-dinitrophenylhydrazone m. 246-7°), and 15% (p-BrC6H4CH:CH)2CO, m. 205-7° (2,4-dinitrophenylhydrazone m. 225-7°), even with excess acetone. 1-(p-Bromophenyl)-2-methyl-3-chloro-2-propen-1-one, m. 63-5°, with MeOH and NaOH gave 77% mixture containing 65% p-BrC6H4-COCHMeCH(OMe)2 and 35% 1-(p-bromophenyl)-2-methyl-3-methoxy-2-propen-1-one. Reduction of the mixture with LiAlH4 gave, after preparative gas chromatog., p-bromo-α-methylcinnamal-dehyde (III) along with p-bromobenzaldehyde, 3-(p-bromophenyl)-2-methyl-1-penten-3-ol, and 1-(p-bromophenyl)-2-methyl-3,3-dimethoxypropan-1-ol. By the method of Knoepfer (CA 3: 1535), I gave 40% (p-BrC6H4CH:CHCH:N)2, m. 229-31°. II similarly gave 45% (p-BrC6H4CH:CHCMe:N)2, m. 203-5°, and 10% II hydrazone, m. 143-5°. III (0.005 mole), 0.0025 mole N2H4, and a small amount of p-MeC6H4SO3H yielded 85% (p-BrC6H4CH:CMeCH:N)2, m. 189-91°. N.M.R., ir, and uv data for the azines were tabulated.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Nagaki, Aiichiro’s team published research in Chemical Engineering & Technology in 2019 | 3480-11-3

Chemical Engineering & Technology published new progress about Aryl bromides Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, Electric Literature of 3480-11-3.

Nagaki, Aiichiro; Jiang, Yiyuan; Yamashita, Hiroki; Takabayashi, Naoshi; Takahashi, Yusuke; Yoshida, Jun-ichi published the artcile< Monolithiation of 5,5'-Dibromo-2,2'-bithiophene Using Flow Microreactors: Mechanistic Implications and Synthetic Applications>, Electric Literature of 3480-11-3, the main research area is monolithiation dibromo bithiophene flow microreactor methyllithium.

The lithiation of 5,5′-dibromo-2,2′-bithiophene with one equivalent of an alkyllithium such as n-BuLi or s-BuLi was studied by varying the residence time in flow microreactors. With a short residence time, the product 2,2′-bithiophene derived from dilithiation was obtained preferentially and a significant amount of the starting material 5,5′-dibromo-2,2′-bithiophene remained unchanged. An increase in the residence time caused a higher yield of the product 5-bromo-2,2′-bithiophene derived from monolithiation with expense in the yields of 2,2′-bithiophene and 5,5′-dibromo-2,2′-bithiophene. The lithiation using MeLi gave the product 5-bromo-2,2′-bithiophene preferentially even with a very short residence time.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Liu, Binghao’s team published research in Organic Chemistry Frontiers in 2022 | 3893-18-3

Organic Chemistry Frontiers published new progress about [3+2] Cycloaddition reaction catalysts. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, COA of Formula: C9H7BrO.

Liu, Binghao; Qi, Jing; Wu, Yatong; Li, Jia-Hui; Li, Yanting; Duan, Xiao-Yong published the artcile< The N-heterocyclic carbene-catalyzed [3 + 2] annulation of isoindigos with enals: the enantioselective construction of three contiguous stereogenic centers>, COA of Formula: C9H7BrO, the main research area is dimeric spirocyclic bisindoline alkaloid preparation diastereoselective enantioselective; enal isoindigo annulation heterocyclic carbene.

Constructing contiguous all-carbon quaternary stereogenic centers has posed a long-standing synthetic challenge in organic chem. In this work, the NHC-catalyzed enantioselective [3 + 2] annulation of enals with isoindigo was introduced as an efficient strategy for the construction of dimeric spirocyclic bisindoline alkaloid derivatives with moderate yields and good enantioselectivities. Remarkably, three contiguous stereogenic centers-including two congested all-carbon quaternary stereogenic centers-were successfully constructed in a simple one-step operation.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Kawecki, Robert’s team published research in Journal of Organic Chemistry in 2022-06-03 | 3959-07-7

Journal of Organic Chemistry published new progress about Disulfides Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Reference of 3959-07-7.

Kawecki, Robert published the artcile< Synthesis of N-sulfenylimines from disulfides and primary methanamines>, Reference of 3959-07-7, the main research area is sulfenylimine preparation; aryl alkyldisulfide primary methanamine.

N-sulfenylimines (sulfenimines, thiooximes, N-alkylidenesulfenamides) were efficiently synthesized through the reaction of primary amines and disulfides with NBS or bromine. This reaction can be carried out in an open flask at room temperature without the need for any transition metal-containing additives. The use of thiols instead of disulfides gave similar results. A wide range of amines were reacted with aryl and alkyldisulfides, resulting in the formation of sulfenimines in a yield of 44-99%.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Perumal, Sakthivel’s team published research in Applied Organometallic Chemistry in 2020 | 3480-11-3

Applied Organometallic Chemistry published new progress about Adsorbents. 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, Computed Properties of 3480-11-3.

Perumal, Sakthivel; Karuppannan, Sekar; Gandhi, Sivaraman; Subramanian, Singaravadivel; Govindasamy, Anbu; Gopal, Senthil Kumar published the artcile< Bithiophene triarylborane dyad: An efficient material for the selective detection of CN- and F- ions>, Computed Properties of 3480-11-3, the main research area is bithiophene triarylborane dyad fluorescent sensor fluoride cyanide.

A new fluorescent chemosensor based on bithiophene coupled dimesitylborane (BMB-1)(I) was synthesized and characterized. BMB-1 was used for colorimetric and turn-on fluorescent sensing of cyanide (CN-) and fluoride (F-) ions, in the presence of other competitive anions in an aqueous (CH3CN-H2O) medium. BMB-1 showed a hypsochromic shift (blue shift) with addition of CN- and F- ions in absorption studies. The lower detection level of CN- and F- ions is 1.37 × 10-9 and 1.75 × 10-9 M, resp. The BMB-1 binding mechanism is based on the nucleophilic addition of CN- and F- ions in the internal charge transfer transition of bithio moiety to the boranylmesitylene unit, and the color changes were observed under UV light. This result is further confirmed by Fourier transform IR spectroscopy, mass spectrometry and d. functional theory calculations Also, the BMB-1 probe is found to be a good adsorbent for the removal of F- ions in real water samples using the adsorption technique.

Applied Organometallic Chemistry published new progress about Adsorbents. 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, Computed Properties of 3480-11-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Xia, Qing’s team published research in Organic Letters in 2020-09-18 | 3959-07-7

Organic Letters published new progress about Amines Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Related Products of 3959-07-7.

Xia, Qing; Li, Yufei; Wang, Xinmin; Dai, Peng; Deng, Hongping; Zhang, Wei-Hua published the artcile< Visible Light-Driven α-Alkylation of N-Aryl tetrahydroisoquinolines Initiated by Electron Donor-Acceptor Complexes>, Related Products of 3959-07-7, the main research area is visible light alkylation aryltetrahydroisoquinoline electron donor acceptor complex.

The visible light-driven α-alkylation of N-aryl tetrahydroisoquinolines was initiated through electron donor-acceptor complex photochem. The reaction can proceed smoothly without the addition of any photocatalysts, transition-metal catalysts, or addnl. oxidants. The proposed mechanism was supported by various mechanistic studies, and the reactive open-shell alkyl radicals were generally produced from an alkylamine and underwent radical coupling for alkylating a wide range of N-aryl tetrahydroisoquinolines.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Sun, Bin’s team published research in Asian Journal of Organic Chemistry in 2021-12-31 | 20776-50-5

Asian Journal of Organic Chemistry published new progress about Bromoalkanes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 20776-50-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H6BrNO2, SDS of cas: 20776-50-5.

Sun, Bin; Tang, Xiaoli; Shi, Rongcheng; Yan, Zhiyang; Li, Bingqian; Tang, Chen; Jin, Can; Wu, Chunlei L.; Shen, Runpu P. published the artcile< Self-photocatalyzed Homolytic Dehalogenative Alkylation/Cyclization of Unactivated Alkenes Based on the Quinazolinone Skeleton via Energy Transfer>, SDS of cas: 20776-50-5, the main research area is alkyl quinazolinone preparation regioselective green chem energy transfer; unactivated alkene halide dehalogenative alkylation cyclization self photocatalysis.

A mild, external photocatalyst- and additive-free protocol for photo-induced alkylation/cyclization of unactivated alkenes with halides has been developed. This strategy showed excellent regioselectivity and simple operation to synthesize alkyl-substituted quinazolinones with a broad substrate scope. More importantly, chlorinated alkanes were also compatible with this transformation.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Deiana, Luca’s team published research in Advanced Synthesis & Catalysis in 2014 | 3893-18-3

Advanced Synthesis & Catalysis published new progress about Cyclization catalysts, stereoselective. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, SDS of cas: 3893-18-3.

Deiana, Luca; Ghisu, Lorenza; Afewerki, Samson; Verho, Oscar; Johnston, Eric V.; Hedin, Niklas; Bacsik, Zoltan; Cordova, Armando published the artcile< Enantioselective heterogeneous synergistic catalysis for asymmetric cascade transformations>, SDS of cas: 3893-18-3, the main research area is enal alkyne asym cascade cyclization spirocyclization palladium silica catalyst; cyclopentenealdehyde asym synthesis; spiro oxindole asym synthesis.

A modular design for a novel heterogeneous synergistic catalytic system, which simultaneously activates the electrophile and nucleophile by the combined activation modes of a sep. metal and non-metal catalyst, for asym. cascade transformations on a solid surface is disclosed. This modular catalysis strategy generates carbocycles (≤97.5:2.5 er) as well as spirocyclic oxindoles (97.5:2.5 to >99:0.5 er), containing all-C quaternary centers, in a highly enantioselective fashion via a one-pot dynamic relay process.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Sun, Bin’s team published research in Advanced Synthesis & Catalysis in 2022-02-15 | 20776-50-5

Advanced Synthesis & Catalysis published new progress about Alkenes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 20776-50-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H6BrNO2, Formula: C7H6BrNO2.

Sun, Bin; Ding, Hao; Tian, Hai-Xia; Huang, Pan-Yi; Jin, Can; Wu, Chun-Lei; Shen, Run-Pu published the artcile< Photo-Triggered Self-Induced Homolytic Dechlorinative Sulfonylation/Cyclization of Unactivated Alkenes: Synthesis of Quinazolinones Containing a Sulfonyl Group>, Formula: C7H6BrNO2, the main research area is quinazolinone containing sulfonyl group regioselective preparation photochem green chem; sulfonyl chloride quinazolinone tandem sulfonylation heterocyclization energy transfer photocatalyst.

A self-photocatalyzed sulfonylation/cyclization of quinazolinones containing unactivated alkenes with various sulfonyl chlorides was developed. The protocol provided access to sulfonyl radicals via energy transfer from quinazolinone skeleton to sulfonyl chloride. Notably, transformations proceeded without any external photocatalysts, additives, or oxidants, providing an alternative method for fabricating sulfonylated compounds I [R = Et, cyclopropyl, Ph, etc.; R1 = H, 3-F, 2-MeO, etc.; n = 0, 1].

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Jow, Kenny G’s team published research in Liquid Crystals in 2002-04-30 | 82-73-5

Liquid Crystals published new progress about Liquid crystal transition. 82-73-5 belongs to class bromides-buliding-blocks, and the molecular formula is C8H3BrO3, Formula: C8H3BrO3.

Jow, Kenny G.; Dingemans, Theo J. published the artcile< Liquid crystals derived from 2-phenylisoindoles: synthesis and characterization>, Formula: C8H3BrO3, the main research area is phenylisoindole preparation smectic A liquid crystal.

2-Phenylisoindole was studied as the rigid core unit in asym. mesogenic mols. When the 2-phenylisoindole core was terminated with a hexyl tail, no mesophase formation could be observed When 4-(tridecafluorohexyl) was used, however, both monotropic and enantiotropic phase behavior were observed Most functionalities at the anhydride 5-position gave smectic A (SmA) phases in the temperature range 70-180°. Functionalities at the anhydride 4-position suppress mesophase formation. Large substituents (Br, NO2) and sym. substitution patterns (5,6-dichloro, 4,7-dichloro and 4,5,6,7-tetrachloro) on the anhydride moiety increase the m.p. and destabilize the mesophase. Temperature dependent x-ray diffraction experiments suggest an interdigitated SmA packing for this family of compounds

Liquid Crystals published new progress about Liquid crystal transition. 82-73-5 belongs to class bromides-buliding-blocks, and the molecular formula is C8H3BrO3, Formula: C8H3BrO3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary