Category: bromides-buliding-blocks

Sommer, Stefan published the artcileSolid-phase synthesis of [5.5]-spiroketals, Synthetic Route of 69361-41-7, the publication is Advanced Synthesis & Catalysis (2008), 350(11+12), 1736-1750, database is CAplus.

An efficient and reliable multi-step synthesis of 251 natural product-like [5.5]-spiroketals on solid supports has been developed. As central key step, a double intramol. hetero-Michael (DIHMA) reaction to alkynones was applied. The sequence allows for introduction of numerous substituents on the scaffold and for variation of stereochem. [5.5]-Spiroketals bearing an addnl. ketone were obtained in high overall yields. Further diversification was achieved by reduction of the ketone and reductive amination using polymer-supported borohydride, Grignard reaction and conversion to oxime derivatives in the solution phase.

Advanced Synthesis & Catalysis published new progress about 69361-41-7. 69361-41-7 belongs to bromides-buliding-blocks, auxiliary class PROTAC Linker,Aliphatic Linker, name is (4-Bromobut-1-yn-1-yl)trimethylsilane, and the molecular formula is C15H12O6, Synthetic Route of 69361-41-7.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Malysheva, S. F. published the artcileChemoselective Synthesis of Alkylphosphinic Acids from Red Phosphorus and Alkyl Bromides in the System KOH/H₂O/Toluene/Micellar Catalyst, Computed Properties of 111-83-1, the publication is Russian Journal of Organic Chemistry (2022), 58(2), 192-199, database is CAplus.

Alkylphosphinic acids, including long-chain ones, were synthesized in up to 76% yields from red P and n-AlkBr (Alk = C₄-C₁₄) under micellar catalysis conditions. The reaction proceeds efficiently and chemoselectively upon heating (85-90°, 6 h) in a KOH/H₂O/toluene/cetyltrimethylammonium bromide system.

Russian Journal of Organic Chemistry published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Computed Properties of 111-83-1.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Malysheva, S. F. published the artcileChemoselective Synthesis of Alkylphosphinic Acids from Red Phosphorus and Alkyl Bromides in the System KOH/H₂O/Toluene/Micellar Catalyst, COA of Formula: C12H25Br, the publication is Russian Journal of Organic Chemistry (2022), 58(2), 192-199, database is CAplus.

Alkylphosphinic acids, including long-chain ones, were synthesized in up to 76% yields from red P and n-AlkBr (Alk = C₄-C₁₄) under micellar catalysis conditions. The reaction proceeds efficiently and chemoselectively upon heating (85-90°, 6 h) in a KOH/H₂O/toluene/cetyltrimethylammonium bromide system.

Russian Journal of Organic Chemistry published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C12H25Br, COA of Formula: C12H25Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Kaur, Ramanjeet published the artcileA thermodynamic investigation of the effect of cationic structure on the self-aggregation behavior of Surface-Active ionic liquids in the presence of an amino acid, Application of 1-Bromododecane, the publication is Journal of Molecular Liquids (2022), 118904, database is CAplus.

A series of imidazolium-based ionic liquids (ILs) with varying side alkyl chain length at N3 position which includes [C12mim][Br], [C12eim][Br], and [C12bim][Br] have been synthesized and characterized by ¹H NMR. Then, their aggregation behavior in the presence of different concentrations of the amino acid L-Tryptophan (L-Trp) at different temperatures has been examined using conductometric, tensiometric, and UV-vis (absorption spectra) techniques. The critical micelle concentration (CMC) of ILs has been investigated in the absence and presence of amino acid to acquire a better understanding of the colloidal behavior of ILs in presence of amino acid as an external additive. The addition of amino acid is observed to reduce the CMC values of the ILs examined in an aqueous media. Likewise, applying a charged pseudo-phase model of micellization, the thermodn. parameters of micellization, such as a change in standard free energy (ΔGom), change in standard enthalpy (ΔHom), and change in standard entropy (ΔSom), have been scrutinized from the dependence of CMC on temperature The surface tension approach was also used to evaluate interfacial characteristics. It was discovered that increasing the length of the side chain increases surface activity. All of the estimated parameters were utilized to determine the electrostatic and hydrophobic contributions of IL to the formation of micellar aggregates.

Journal of Molecular Liquids published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C12H25Br, Application of 1-Bromododecane.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Sharma, Ravinder published the artcileVolumetric and acoustic properties of L-phenyl glycine and L-phenylalanine in aqueous solution of 1-dodecyl-3-methylimidazolium bromide [C₁₂mim] [Br], Recommanded Product: 1-Bromododecane, the publication is Journal of Molecular Liquids (2022), 119014, database is CAplus.

To study the mol. interactions between the ternary mixtures containing long chain imidazolium based ionic liquid as a common solvent with substituted amino acids L-Ph glycine and L-phenylalanine resp., densities and speed of sound have been measured at three different temperatures viz. T = 288.15 K, 298.15 K, 318.15 and 318.15 K under 0.1 MPa pressure. The d. and speed of sound data have been further utilized to calculate the apparent molar volume and apparent molar isentropic compression. From the data obtained, apparent molar volume (V_ϕ), partial molar volume (V⁰_ϕ), and standard partial molar volumes of transfer (ΔV⁰_ϕ). Pos. values of apparent molar volume indicate strong interactions. Also, partial molar isentropic compression of transfer (ΔK⁰_ϕ,S) and partial molar isentropic compression (K_ϕ,S) have been calculated from the sound of speed. Furthermore, structure making and structure breaking ability of solute have been discussed by evaluation of apparent molar expansivity, (ϕ⁰_E), Hepler′s constant values (∂/∂T)p. The obtained results have been discussed in terms of solvation behavior, structural changes and various interactions present in different ternary mixtures (1-dodecyl-3-methylimidazolium bromide + amino acids + water).

Journal of Molecular Liquids published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C18H34N4O5S, Recommanded Product: 1-Bromododecane.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Jeong, Jaemyeng published the artcileSynthesis and characterization of triphenylamine-based polymers and their application towards solid-state electrochromic cells, Recommanded Product: 2,5-Dibromo-3,4-dinitrothiophene, the publication is RSC Advances (2016), 6(82), 78984-78993, database is CAplus.

Four novel triphenylamine-based polymers, PJK1, PJK2, PJK3 and PJK4 were successfully synthesized and fully characterized by ¹H NMR, UV-VIS spectroscopy, cyclic voltammetry (CV), GPC and spectroelectrochem. These polymers are easily soluble in many common organic solvents, which make them appropriate for film deposition via spray-coating. We fabricated electrochromic cells comprising ITO-coated glass/polymer/gel electrolyte/ITO-coated glass and patterned the color change by applying d.c. with different voltages. We report herein color changes, from the neutral to oxidized form as follows: for PJK1, orange to dark green; for PJK2, light yellow to reddish brown; for PJK3, light blue to gray; and for PJK4, green to bluish green. The majority of the copolymers exhibited very good thermal stabilities, as evidenced by less than a 5% weight loss in temperatures exceeding 400°C. To further characterize, we simulated the electrochem. and optical properties, which are good agreement with the exptl. data.

RSC Advances published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C4Br2N2O4S, Recommanded Product: 2,5-Dibromo-3,4-dinitrothiophene.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Thiemann, Thies published the artcileStudies towards dibenzothiophene S-oxide arrays and their photochemical reactivity, Category: bromides-buliding-blocks, the publication is Kyushu Daigaku Kino Busshitsu Kagaku Kenkyusho Hokoku (2001), 15(1), 63-71, database is CAplus.

A novel access to oligo(dibenzothiophenes) is described Here, the trimethylsilyl-group is used both as positional protective group and as a directive group which can be exchanged. The reagents benzyltrimethylammonium tribromide (BTMABr₃) and benzyltrimethylammonium iododichloride (BTMAICl₂) are used for the first time in silyl-halo exchange reactions. The dimeric, trimeric and tetrameric dibenzothiophene building blocks are prepared by Suzuki-Kumada C-C coupling reactions. Exemplary oxygenations of these building blocks to the corresponding dibenzothiophene S-oxides is shown.

Kyushu Daigaku Kino Busshitsu Kagaku Kenkyusho Hokoku published new progress about 111865-47-5. 111865-47-5 belongs to bromides-buliding-blocks, auxiliary class Benzenes, name is Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, and the molecular formula is C4H7BrO2, Category: bromides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Yin, Hongfei published the artcilePalladium Catalyzed Carbonylative Coupling of Alkyl Boron Reagents with Bromodifluoroacetamides, HPLC of Formula: 401-55-8, the publication is ACS Catalysis (2018), 8(5), 3853-3858, database is CAplus.

A catalytic protocol for the preparation of α,α-difluoro-β-alkyl-β-ketoamides is developed employing a Pd-mediated carbonylative Suzuki coupling between alkylboron reagents and bromodifluoroacetamides with COgen as the CO source. The reaction reveals good functional group tolerance providing a broad selection of α,α-difluoro-β-alkyl-β-ketoamides in moderate to good yields, which represent useful precursors for further synthetic manipulation. Finally, the methodol. is amenable to ¹³C-isotope labeling at the ketone carbon applying ¹³C-COgen.

ACS Catalysis published new progress about 401-55-8. 401-55-8 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Aliphatic hydrocarbon chain,Ester, name is Ethylbromofluoroacetate, and the molecular formula is C16H14O6, HPLC of Formula: 401-55-8.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Rastyanite, L. published the artcileSulfoalkylation of 1,2-dihydro-3,6-pyridazine- and 2,3-dihydro-1,4-phthalazinediones and their N-phenyl derivatives by 1,3-propanesultone and bromoalkanesulfonates, Related Products of bromides-buliding-blocks, the publication is Chemistry of Heterocyclic Compounds (New York, NY, United States)(Translation of Khimiya Geterotsiklicheskikh Soedinenii) (2002), 38(11), 1363-1367, database is CAplus.

When 1,2-dihydropyridazine-3,6-dione, 2,3-dihydrophthalazine-1,4-dione, 1-phenyl-1,2-dihydropyridazine-3,6-dione, and 2-phenyl-2,3-dihydrophthalazine-1,4-dione react with 1,3-propanesultone and bromoalkanesulfonates, depending on the nature of the sulfoalkylating agent in the case of 1,2-dihydropyridazine-3,6-dione and 2,3-dihydrophthalazine-1,4-dione, either N,O- or O,O’-disulfoalkylated compounds may be formed, while O-monosulfoalkylated reaction products may be formed in the case of the N-phenyl-substituted derivatives of the above-indicated azinediones.

Chemistry of Heterocyclic Compounds (New York, NY, United States)(Translation of Khimiya Geterotsiklicheskikh Soedinenii) published new progress about 55788-44-8. 55788-44-8 belongs to bromides-buliding-blocks, auxiliary class Bromide,Salt,Aliphatic hydrocarbon chain,Aliphatic hydrocarbon chain, name is Sodium 3-bromopropane-1-sulfonate, and the molecular formula is C3H6BrNaO3S, Related Products of bromides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Miura, Yozo published the artcilePyridyl-Substituted Thioaminyl Stable Free Radicals: Isolation, ESR Spectra, and Magnetic Characterization, Name: Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, the publication is Journal of Organic Chemistry (1998), 63(23), 8295-8303, database is CAplus.

N-[(4-Nitrophenyl)thio]- (1a) and N-[(2,4-dichlorophenyl)thio]-2,6-diphenyl-4-(3-pyridyl)phenylaminyl (1b), N-[(4-nitrophenyl)thio]- (2a) and N-[(2,4-dichlorophenyl)thio]-4-phenyl-2,6-di(3-pyridyl)phenylaminyl (2b), and N-[(2,4-dichlorophenyl)thio]-2,6-diphenyl(4-pyridyl)aminyl (3) were generated by PbO₂ oxidation of the corresponding precursors. Although 3 was not sufficiently stable to be isolated, both 1 and 2 persisted in solution without decomposition and could be isolated as radical crystals. X-ray crystallog. anal. of 1b revealed that the Ar-N-S-Ar’ π-framework is approx. planar and the 2- and 6-Ph groups are significantly twisted from this plane. The magnetic susceptibility measurements for the isolated radical crystals were carried out using a SQUID magnetometer in the temperature range 1.8-300 K. The susceptibilities of 1a and 2a were explained in terms of a 1-dimensional (1D) antiferromagnetic (AFM) regular Heisenberg model with an exchange interaction of 2J/k_B = -63.4 and -17.8 K, resp., and that of 1b was interpreted in terms of a 1-dimensional AFM alternating Heisenberg model with 2J/k_B = -12.8 K and α (alternation parameter) = 0.91. However, that of 2b was explained in terms of a 1-dimensional ferromagnetic regular Heisenberg model with 2J/k_B = 22.4 K.

Journal of Organic Chemistry published new progress about 111865-47-5. 111865-47-5 belongs to bromides-buliding-blocks, auxiliary class Benzenes, name is Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, and the molecular formula is C10H16Br3N, Name: Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary