171820-09-0Relevant articles and documents
Selective synthesis of oxazoles and pyrazines from α-bromo-1-phenylethanone using a by-product-promoted strategy
Liu, Changhui,Zhao, Jiateng,Qiao, Yu,Huang, Wenbo,Rao, Zhonghao,Gu, Yanlong
, p. 7351 - 7357 (2018)
Oxazoles and pyrazines are fundamental heterocycles that widely found in natural products or drugs. In this work, a selective strategy for oxazoles and pyrazines synthesis using α-bromo-1-phenylethanone and ammonium acetate as starting materials was reported. This methodology features mild reaction conditions, readily accessible starting materials and good chemoselectivity. Mechanistic study indicates that this reaction involves a by-product-promoted (BPP) process for the formation of oxazole, that is, the in-situ formed hydrogen bromide (HBr) during the reaction promotes the whole tandem process.
Synthesis of 2,6-diphenylpyrazine derivatives and their DNA binding and cytotoxic properties
Dias, Nathalie,Jacquemard, Ulrich,Baldeyrou, Brigitte,Lansiaux, Amelie,Goossens, Jean-Francois,Bailly, Christian,Routier, Sylvain,Merour, Jean-Yves
, p. 1206 - 1213 (2007/10/03)
A series of 2,6-diphenylpyrazine derivatives was synthesized from 2,6-dichloropyrazine and 4-methoxyphenylboronic acid using palladium(0) as catalyst in a Suzuki methodology. After deprotection of the hydroxyl, alkylation reactions with different halides