GAWLEY, ROBERT E.;CHEMBURKAR, SANJAY R., HETEROCYCLES, 29,(1989) N, C. 1283-1292
作者:GAWLEY, ROBERT E.、CHEMBURKAR, SANJAY R.
DOI:——
日期:——
GAWLEY R. E.; CHEMBURKAR SANJAY, TETRAHEDRON LETT., 27,(1986) N 19, 2071-2074
作者:GAWLEY R. E.、 CHEMBURKAR SANJAY
DOI:——
日期:——
Generation and cyclization of nitrilium ions from amides. Asymmetric synthesis of fused azabicyclics
作者:Robert E. Gawley、Sanjay Chemburkar
DOI:10.1016/s0040-4039(00)84451-2
日期:1986.1
Treatment of 2° amides with PPSE affords nitrilium ions which may be cyclized onto appropriate terminators. The conditions are compatible with esters in the molecule, and further elaboration to pyrrolizidine and indolizidine rings is possible via asymmetric reduction.