Differential reactivity of β-amino enones and 3-dimethylaminoacrylaldehyde towards α-amino derivatives
作者:Angel Alberola、José M. Andrés、Alfonso González、Rafael Pedrosa、Martina Vicente
DOI:10.1039/p19900002681
日期:——
Unsubstituted β-aminoenones react with α-aminoderivatives by a well established route which implies a fast transamination process — 1,4-addition followed by elimination — and cyclodehydration of the intermediate to 3-functionalized pyrroles. In contrast, 3-dimethylaminoacrylaldehyde undergoes 1,2-addition followed by cyclization to give the final 2-substituted pyrroles. Isolation of the intermediates