Triphosgene: a versatile reagent for the synthesis of azetidin-2-ones
摘要:
An efficient use of triphosgene, as an acid activator, for the synthesis of substituted azetidin-2-ones via ketene-imine cyclo-addition reaction using various acids and imines have been described. (C) 2002 Elsevier Science Ltd. All rights reserved.
An efficient method for the preparation of chiral -3,4-disubstituted β-lactams, based on reaction between imines from homochiral protected lactaldehydes and furfurylamine and phenyl dichlorophosphate activated carboxylic acid derivatives, is reported.
Synthesis of 3-heterosubstituted isocephem and iso-oxacephem antibiotics
作者:Stuart W. McCombie、William A. Metz、Adriano Afonso
DOI:10.1016/s0040-4039(00)84003-4
日期:1986.1
Sharma, S. D.; Arora, S. K.; Mehra, Usha, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1985, vol. 24, p. 895 - 901
作者:Sharma, S. D.、Arora, S. K.、Mehra, Usha
DOI:——
日期:——
Sharma, S. D.; Kaur, S.; Mehra, Usha, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1986, vol. 25, p. 141 - 144
作者:Sharma, S. D.、Kaur, S.、Mehra, Usha
DOI:——
日期:——
Sharma, S. D.; Kaur, Sukhjinder; Mehra, Usha, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 3, p. 238 - 242