Functionalised pyrrolidinones derived from (S)-pyroglutamic acid by cycloaddition reactions
摘要:
The alpha,beta-unsaturated bicyclic lactams 3a,c, prepared from (S)-pyroglutamic acid, are useful substrates for cycloaddition reactions, giving excellent regio-and diastereocontrol; however, lactam 3c has very superior reactivity with several dienes and dipoles under mild reaction conditions. (C) 1997 Elsevier Science Ltd.
Functionalised pyrrolidinones derived from (S)-pyroglutamic acid by cycloaddition reactions
摘要:
The alpha,beta-unsaturated bicyclic lactams 3a,c, prepared from (S)-pyroglutamic acid, are useful substrates for cycloaddition reactions, giving excellent regio-and diastereocontrol; however, lactam 3c has very superior reactivity with several dienes and dipoles under mild reaction conditions. (C) 1997 Elsevier Science Ltd.