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(2RS,3SR)-2,3-dibromo-3-(4-nitrophenyl)propanoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

31357-33-2

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31357-33-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31357-33-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,3,5 and 7 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 31357-33:
(7*3)+(6*1)+(5*3)+(4*5)+(3*7)+(2*3)+(1*3)=92
92 % 10 = 2
So 31357-33-2 is a valid CAS Registry Number.

31357-33-2Upstream product

31357-33-2Relevant academic research and scientific papers

Synthesis of (Z)-1-bromo-1-alkenes and terminal alkynes from anti-2,3-dibromoalkanoic acids by microwave-induced reaction

Kuang, Chunxiang,Yang, Qing,Senboku, Hisanori,Tokuda, Masao

, p. 4043 - 4052 (2005)

(Z)-1-Bromo-1-alkenes were stereoselectively prepared in high yields in a short reaction time by microwave irradiation of the corresponding anti-2,3-dibromoalkanoic acids in a Et3N/DMF system. A one-pot synthesis of terminal alkynes and enynes from 2,3-dibromoalkanoic acids were also developed by microwave-induced reaction.

Chloro/bromotrimethylsilane-Cu(NO3)2·3H2O: Safe and efficient reagent system for the decarboxylative ipso-nitration and dibromination of cinnamic acids

Roshandel, Sahar,Gurung, Laxman,Mathew, Thomas,Prakash, G.K. Surya

supporting information, p. 2842 - 2845 (2017/06/27)

Further synthetic potential of halotrimethylsilane-nitrate salt mixture is revealed. A mixture of TMSX-Cu(NO3)2·3H2O system is found to be an efficient reagent system for both the decarboxylative nitration (ipso-nitration) when X?=?Cl, and dibromination of cinnamic acids, with X?=?Br, under mild conditions. The reactions are safe and simple, affording the corresponding products (E)-β-nitrostyrenes, and anti-2,3-dibromo-3-phenylpropanoic acids in high yields with high selectivity in a relatively short time. Use of hazardous and toxic nitrating systems such as acetyl nitrate and brominating agents such as molecular bromine can be avoided.

Convenient synthesis of terminal alkynes from anti-3-aryl-2,3- dibromopropanoic acids using a K2CO3/DMSO system

Cheng, Xuezhi,Jia, Jun,Kuang, Chunxiang

experimental part, p. 2350 - 2354 (2012/02/03)

A convenient, efficient, and generally applicable method was developed for the synthesis of terminal alkynes from anti-3-aryl-2,3-dibromopropanoic acids in the presence of DMSO and K2CO3.

Convenient and stereoselective synthesis of (Z)-1-bromo-1-alkenes by microwave-induced reaction

Kuang, Chunxiang,Senboku, Hisanori,Tokuda, Masao

, p. 3893 - 3896 (2007/10/03)

(Z)-1-Bromo-1-alkenes were stereoselectively prepared in high yields in a short reaction time (0.2-1.0 min) by microwave irradiation of the corresponding 2,3-dibromoalkanoic acids in DMF in the presence of triethylamine.

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