"Tert-Amino effect" in heterocyclic synthesis. Formation of N heterocycles by ring-closure reactions of substituted 2-vinyl-N,N-dialkylanilines
作者:Willem Verboom、David N. Reinhoudt、Richard Visser、Sybolt Harkema
DOI:10.1021/jo00176a011
日期:1984.1
1-Pyrrolidin-1-ylbuta-1,3-dienes as potential 1,5-dipoles; synthesis of pyrrolizines
作者:Germ W. Visser、Willem Verboom、Piet H. Benders、David N. Reinhoudt
DOI:10.1039/c39820000669
日期:——
Teutomerization of 1-pyrrolidin-1-ylbuta-1,3-dienes and (hetero)aromatic compounds formally containing this moiety, to the corresponding 1,5-dipoles by a concerted [1,6] hydrogen shift is followed by a 1,5-electrocyclization to give pyrrolizine derivatives.