Month: October 2022

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.

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.

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%.

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.

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.

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.

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.

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.

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.

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.

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].

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.

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

Wu, Qin’s team published research in Organic Letters in 2022-06-10 | 3959-07-7

Organic Letters published new progress about Aliphatic amines Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Safety of 4-Bromobenzylamine.

Wu, Qin; Xu, Genrui; Li, Weiqiang; Wan, Juan; Liu, Teng; Huang, Chao published the artcile< Cu(I)-Catalyzed and Base-Promoted [5 + 2 + 1] Cascade Cyclization of 2-Nitrochalcones with Aliphatic Primary Amines to 5H-Pyrimido[5,4-b]indole Frameworks>, Safety of 4-Bromobenzylamine, the main research area is nitrochalcone primary amine copper catalyst tandem cycloaddition; pyrimidoindole preparation.

An unprecedented [5 + 2 + 1] cascade cyclization to the preparation of 5H-pyrimido[5,4-b]indole derivatives was disclosed. The novel protocol of 2-nitrochalcones reacted with aliphatic primary amines catalyzed by CuI and promoted by Cs2CO3, which underwent a critical intermediate 2,3-disubstituted indole, providing structurally diverse 5H-pyrimido[5,4-b]indoles in generally high yields (77-90%) and broad substrate scopes (34 examples).

Organic Letters published new progress about Aliphatic amines Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Safety of 4-Bromobenzylamine.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yadav, J S’s team published research in Green Chemistry in 2000-06-30 | 19128-48-4

Green Chemistry published new progress about Amines Role: RCT (Reactant), RACT (Reactant or Reagent). 19128-48-4 belongs to class bromides-buliding-blocks, and the molecular formula is C6H3BrClNO2, Synthetic Route of 19128-48-4.

Yadav, J. S.; Subba Reddy, B. V. published the artcile< Microwave-assisted efficient synthesis of N-arylamines in dry media>, Synthetic Route of 19128-48-4, the main research area is arylamine microwave assisted preparation; aryl halide reaction secondary amine microwave.

A novel and efficient synthesis of N-arylamines by the reaction of activated aryl halides with secondary amines in the presence of basic Al2O3 under microwave irradiation in solvent free conditions is reported.

Green Chemistry published new progress about Amines Role: RCT (Reactant), RACT (Reactant or Reagent). 19128-48-4 belongs to class bromides-buliding-blocks, and the molecular formula is C6H3BrClNO2, Synthetic Route of 19128-48-4.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary