MG SRC="/isubscribe/journals/orlef7/9/i14/figures/ol0709174n00001.gif" ALIGN="left" HSPACE=5> |
A sa
mariu
m-pro
moted cyclopropanation of un
masked
mages/gifchars/alpha.gif" BORDER=0>
,mages/gifchars/beta2.gif" BORDER=0 ALIGN="
middle">-unsaturated acids is described. This reaction can be carried out on (
E)- or (
Z)-
mages/gifchars/alpha.gif" BORDER=0>
,mages/gifchars/beta2.gif" BORDER=0 ALIGN="
middle">-unsaturated carboxylic acids. In all cases the process is co
mpletely stereospecific and stereoselective. A
mechanis
m has been proposedto explain the cyclopropanation reaction.