The first sequential catalytic asymmetric carbolithiation reaction of dienyl systems followed by a 1,3-intramolecular elimination leads to (E)- and trans-disubstituted vinylcyclopropanes in moderate to good enantiomeric excesses.
二烯基系统的第一个连续催化不对称碳
锂化反应,然后是 1,3-分子内消除,导致 (E)- 和反式二取代的
乙烯基环丙烷处于中等至良好的对映体过量。