A facile preparation of highly functionalized cyclopropanes and their conversion to cyclopentanones and furans
作者:Phil Ho Lee、Jong Soon Kim、Youn Chul Kim、Sunggak Kim
DOI:10.1016/s0040-4039(00)60406-9
日期:1993.11
It was found that cyclopentanones and furans were prepared from 1-alkenyl-1-methoxycyclopropane derivatives derived from the conjugate addition of 1-methoxy-2-alkenylidenephosphoranes to activated olefins.
Preparation of β′-phenylsulfonyl α,β-unsaturated ketones and unsymmetric dialkenyl ketones from 2-alkenyl-2-methoxycyclopropyl phenyl sulfones
作者:Jeongwoo Lee、Phil Ho Lee
DOI:10.1016/s0040-4039(97)82948-6
日期:1996.12
β′-Phenylsulfonyl α,β-unsaturated ketones, which can be easily converted to unsymmetric dialkenyl ketones, were prepared via ring opening reactions of 2-alkenyl-2-methoxycyclopropyl phenyl sulfones.