The base induced ring opening of beta-lactam derivatives, 3, 5, 7, 9, 11 with LDA gave gamma-lactam derivatives, 4, 6, 8, 10, 12 stereo selectively. The gamma-lactam derivatives were formed stereoselectively depending on C-3 substituent of P-lactam derivatives. (C) 2005 Published by Elsevier Ltd.
Mehrotra, K. N.; Singh, S. B.; Singh, K. N., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, # 2, p. 146 - 148
作者:Mehrotra, K. N.、Singh, S. B.、Singh, K. N.
DOI:——
日期:——
Highly Diastereoselective Synthesis of Functionalized β-Lactams
作者:Djillali Ait Sidhouma、Hadj Benhaoua
DOI:10.1080/00397919708006088
日期:1997.5
An efficient method based, on the acid chloride-imine reaction, is reported for the preparation of 1,3-disubstituted beta-lactams in good yield and with high selectivity.
MEHROTRA, K. N.;SINGH, S. B.;SINGH, K. N., INDIAN J. CHEM., 1982, 21, N 2, 146-148