Conjugate addition of nitrogen nucleophiles to an α, β-unsaturated pyrrolidinone
作者:Philip W.H Chan、Ian F Cottrell、Mark G Moloney
DOI:10.1016/s0040-4039(97)01312-9
日期:1997.8
The conjugate addition of nitrogen nucleophiles to alpha,beta-unsaturated lactam 1b under very mild conditions occurs in good yield with high diastereoselectivity. Deprotection provides a simple access to beta-aminopyrrolidinones in excellent overall yield. (C) 1997 Elsevier Science Ltd.
Pyrrolidinones derived from (S)-pyroglutamic acid. Part 3. β-Aminopyrrolidinones
作者:Philip W. H. Chan、Ian F. Cottrell、Mark G. Moloney
DOI:10.1039/b106782f
日期:2001.11.15
The conjugate addition of activated nitrogen nucleophiles, such as hydroxylamine and hydrazine derivatives, to α,β-unsaturated bicyclic lactam 1a gave the corresponding β-amino products 9aâg in good yield and excellent diastereoselectivity. These products can be manipulated to afford enantiopure β-aminopyrrolidinones of potential application as conformationally-constrained, substituted glutamate templates of well-defined stereochemistry.