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Benzene, 1-(1-azidoethenyl)-4-bromo- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

89108-50-9

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89108-50-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89108-50-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,0 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 89108-50:
(7*8)+(6*9)+(5*1)+(4*0)+(3*8)+(2*5)+(1*0)=149
149 % 10 = 9
So 89108-50-9 is a valid CAS Registry Number.

89108-50-9Relevant academic research and scientific papers

Synthesis of Imidazo[1,2- a]pyridines: Triflic Anhydride-Mediated Annulation of 2 H-Azirines with 2-Chloropyridines

Vuillermet, Frédéric,Bourret, Joanick,Pelletier, Guillaume

, p. 388 - 402 (2020/12/23)

The discovery and optimization of a reaction between 2-chloropyridines and 2H-azirines producing imidazo[1,2-a]pyridines is described. The treatment of 2H-azirines with triflic anhydride (Tf2O) forms an electrophilic 1-trifloyl-aziridin-2-yl triflate spec

A sustainable strategy for the straightforward preparation of 2H-azirines and highly functionalized NH-aziridines from vinyl azides using a single solvent flow-batch approach

Andresini, Michael,Degannaro, Leonardo,Luisi, Renzo

, p. 203 - 209 (2021/02/26)

The reported flow-batch approach enables the easy preparation of 2H-azirines and their stereoselective transformation into highly functionalized NH-aziridines, starting from vinyl azides and organolithium compounds. The protocol has been developed using c

Electrochemical Oxidative Cross-Coupling between Vinyl Azides and Thiophenols: Synthesis ofgem-Bisarylthio Enamines

Li, Guodong,Yu, Ke,Yang, Jiajun,Xu, Bo,Chen, Qianjin

, p. 15946 - 15952 (2021/07/20)

An electrochemical radical strategy involving alkene substrates provides a powerful approach for alkene functionalization. Herein, we described the first electrochemical synthesis ofgem-bisarylthio enamines from vinyl azides and thiophenols through the C-

Synthesis of Isoquinoline Derivatives via Palladium-Catalyzed C?H/C?N Bond Activation of N-Acyl Hydrazones with α-Substituted Vinyl Azides

Jiang, Huanfeng,Nie, Biao,Ren, Qingyun,Wu, Wanqing,Zeng, Wei,Zhang, Ji,Zhang, Yingjun

, (2020/02/25)

A palladium-catalyzed cyclization of N-acetyl hydrazones with vinyl azides has been developed. Various substituted isoquinolines, including diverse fused isoquinolines can be prepared via this protocol in moderate to good yields. Mechanistic studies suggest that α-substituted vinyl azide serves as an internal nitrogen source. Also, C?H bond activation and C?N bond cleavage have been realized using hydrazone as directing group. (Figure presented.).

Access to Cycloalkeno[ c]-Fused Pyridines via Pd-Catalyzed C(sp2)-H Activation and Cyclization of N-Acetyl Hydrazones of Acylcycloalkenes with Vinyl Azides

Nie, Biao,Wu, Wanqing,Ren, Qingyun,Wang, Zhongqing,Zhang, Ji,Zhang, Yingjun,Jiang, Huanfeng

, p. 7786 - 7790 (2020/11/02)

A novel Pd(II)-catalyzed vinylic C-H activation and cyclization has been developed, reacting a series of small, medium, and large N-acetyl hydrazones of acylcycloalkenes with vinyl azides to access diverse cycloalkeno[c]-fused pyridine scaffolds. This protocol provides progress in C(sp2)-H bond activation of medium to large cycloalkenes, and the target products can be obtained in a specific regioselectivity with good functional group tolerance and a broad substrate scope.

Indium(iii) catalyzed reactions of vinyl azides and indoles

More, Atul A.,Szpilman, Alex M.

supporting information, p. 3759 - 3764 (2020/06/08)

Indium trichloride catalyzes the reaction of vinyl azides with unfunctionalized indoles to give vinyl indoles. This is the first example of displacement of the azide group by a carbon nucleophile while preserving the vinyl function. The protocol employs very mild reaction conditions and offers excellent yields of diverse 3-vinyl indoles. It is amenable to gram scale. Access to a library of 3,3′-bis(indolyl)methanes through condensation of vinyl azides with 2 equiv of an indole is demonstrated.

Highly Enantioselective Iridium-Catalyzed Coupling Reaction of Vinyl Azides and Racemic Allylic Carbonates

Han, Min,Yang, Min,Wu, Rui,Li, Yang,Jia, Tao,Gao, Yuanji,Ni, Hai-Liang,Hu, Ping,Wang, Bi-Qin,Cao, Peng

, p. 13398 - 13405 (2020/09/02)

The iridium-catalyzed enantioselective coupling reaction of vinyl azides and allylic electrophiles is presented and provides access to β-chiral carbonyl derivatives. Vinyl azides are used as acetamide enolate or acetonitrile carbanion surrogates, leading to γ,δ-unsaturated β-substituted amides as well as nitriles with excellent enantiomeric excess. These products are readily transformed into chiral N-containing building blocks and pharmaceuticals. A mechanism is proposed to rationalize the chemoselectivity of this coupling reaction.

Zn-ProPhenol Catalyzed Enantioselective Mannich Reaction of 2 H-Azirines with Alkynyl Ketones

Trost, Barry M.,Zhu, Chuanle

, p. 9683 - 9687 (2020/12/21)

The enantioselective Mannich reaction of 2H-azirines with alkynyl ketones is achieved under Zn-ProPhenol catalysis, delivering various aziridines with vicinal tetrasubstituted stereocenters in high yields with excellent enantioselectivities. The bimetalli

AgN3-Catalyzed Hydroazidation of Terminal Alkynes and Mechanistic Studies

Bi, Xihe,Cao, Shanshan,Ji, Qinghe,Li, Huaizhi,Pang, Maolin,Yuan, Haiyan,Zhang, Jingping

supporting information, p. 7083 - 7091 (2020/05/14)

The hydroazidation of alkynes is the most straightforward way to access vinyl azides-versatile building blocks in organic synthesis. We previously realized such a fundamental reaction of terminal alkynes using Ag2CO3 as a catalyst. H

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