Easy access to β-halo amino esters and aziridine 2-carboxylic esters from halohydrins
摘要:
The halohydrins prepared from epoxide esters, were treated with hydroxylamine derivatives. In subsequent reaction with NaOH/K2CO3/Bu4NHSO4 the N-protected beta-halo alpha-aminoesters thus obtained were converted into N-hydroxy ariridine 2-carboxylic esters in good yields. (C) 2003 Elsevier Science Ltd. All rights reserved.
Short and efficient synthesis of new α-oximino esters
作者:Said Boukhris、Abdelaziz Souizi、Albert Robert
DOI:10.1016/0040-4039(96)00908-2
日期:1996.7
α-Cyano α-alkoxy carbonyl epoxides 1 react, in refluxing alcohol, with hydroxylamine hydrochloride 2 in a direct ring opening reaction to give β-alkoxy α-oximinoesters 4 in good yields. We have shown that this reaction proceeds through the formation of chlorohydrons 3.
Ouladyakhlef, Abdesalam; Boukhris, Said; Souizi, Abdelaziz, Bulletin de la Societe Chimique de France, 1997, vol. 134, # 1, p. 111 - 114
作者:Ouladyakhlef, Abdesalam、Boukhris, Said、Souizi, Abdelaziz、Robert, Albert
DOI:——
日期:——
A New Method of Synthesis of 2-Alkoxycarbonyl 3-aryg-3,4-dihydro Quinoxalines and 2-Alkoxycarbonyl3-aryl Quinoxalines
作者:Gaz Abderrazak、Souizi Abdelaziz、Coudert Gérard
DOI:10.1080/00397919908085976
日期:1999.10
Cyanoesters epoxides 1, when treated with o-phenylenediamine in presence or absence of hydrogen chloride, at reflux of acetonitrile, give the 2-alkoxycarbonyl-3-aryl-3,4-dihydro quinoxalines and 2-alkoxy carbonyl-3-aryl quinoxalines in good yields.
Easy access to β-halo amino esters and aziridine 2-carboxylic esters from halohydrins
作者:Saı̈d Boukhris、Abdelaziz Souizi
DOI:10.1016/s0040-4039(03)00631-2
日期:2003.4
The halohydrins prepared from epoxide esters, were treated with hydroxylamine derivatives. In subsequent reaction with NaOH/K2CO3/Bu4NHSO4 the N-protected beta-halo alpha-aminoesters thus obtained were converted into N-hydroxy ariridine 2-carboxylic esters in good yields. (C) 2003 Elsevier Science Ltd. All rights reserved.