TUCKER, CHARLES E.;RAO, S. ACHYUTHA;KNOCHEL, PAUL, J. ORG. CHEM., 55,(1990) N0, C. 5446-5448
作者:TUCKER, CHARLES E.、RAO, S. ACHYUTHA、KNOCHEL, PAUL
DOI:——
日期:——
Preparation of Functionalized<i>Z</i>-Olefins Using 1,1-Dimetalloalkanes
作者:Charles E. Tucker、Paul Knochel
DOI:10.1055/s-1993-25899
日期:——
1,1-Dimetalloalkanes obtained by the allylzincation of alkenylmagnesium compounds react smoothly with various functionalized alkylidenemalonates providing functionalized Z-olefins in good yields. If dimenthyl alkylidenemalonates are used, then excellent stereoselectivities are observed (92:8 to 100:0). An application to a short stereospecific synthesis of an insect pheromone [(Z)-7-dodecenyl acetate] is described (> 99.9% Z, 70% overall yield).