BENAGES I. A.; ALBONICO S. M., J. ORG. CHEM., 1978, 43, NO 22, 4273-4276
作者:BENAGES I. A.、 ALBONICO S. M.
DOI:——
日期:——
Synthesis of 2,3-Dihydropyrrolizines from Weinreb 3-(Pyrrolidin-2-ylidene)propionamides or Weinreb<i>N-</i>Vinylprolinamides
作者:Alfonso González-Ortega、Luis Calvo、M. Carmen Sañudo
DOI:10.1055/s-2002-35220
日期:——
Weinreb 3-(pyrrolidin-2-ylidene)propionamides and Weinreb N-vinylprolinamides were used for the synthesis of 2,3-dihydropyrrolizines. The selective reaction of the carboxamide group with organometallic compounds allowed us to obtain a great variety of carbonyl intermediates, analogous to the Hantzsch and Knorr pyrrole synthesis, which were thermally cyclized.