An anionic 3+2 cyclization-elimination route to cyclopentenes
作者:Peter Beak、Douglas A Burg
DOI:10.1016/s0040-4039(00)85360-5
日期:1986.1
Anionic3+2cyclization-elimination reactions between 1-benzenesulfonyl-2-(-diisopropyl)carboxamidoallyllithium (2) and electron-deficient olefins provide the 4-substituted--diisopropylcyclopent-1-ene carboxamides 3–8 in yields of 22–89%.