Entry into the podocarpane series through a biogenetic-like stereoselective olefin cyclization
作者:William S. Johnson、Thomas K. Schaaf
DOI:10.1039/c29690000611
日期:——
NEGISHI, EI-ICHI;ZHANG, YANTAO;BAGHERI, VAHID, TETRAHEDRON LETT., 28,(1987) N 47, 5793-5796
作者:NEGISHI, EI-ICHI、ZHANG, YANTAO、BAGHERI, VAHID
DOI:——
日期:——
Highly stereoselective synthesis of exocyclic alkenes via cyclialkylation
作者:Ei-ichi Negishi、Yantao Zhang、Vahid Bagheri
DOI:10.1016/s0040-4039(01)81055-8
日期:1987.1
Treatment of stereodefined ω-halo-2-iodoalkene derivatives (1), prepared viastereoselective addition reactions of alkynes, with either -BuLi (1 equiv) or -BuLi (2 equiv) can produce exocyclicalkenes whose isomeric purity is essentially 100%.