作者:Eike Hupe、Paul Knochel
DOI:10.1002/1521-3773(20010817)40:16<3022::aid-anie3022>3.0.co;2-w
日期:2001.8.17
By a sequence comprising asymmetric hydroboration, boron-zinc exchange, and transmetalation with copper, allylations, alkynylations, and allenylations of unsaturated ketals or acetals can be performed with good enantioselectivities (see scheme, (-)-IpcBH2 =(-)-isopinocampheylborane, TMS=Me3 Si). The products correspond to a formal Michael addition with inversion of polarity.
通过包括不对称硼氢化,硼锌交换和与铜的金属转移的序列,可以以良好的对映选择性进行不饱和缩酮或乙缩醛的烯丙基化,炔基化和烯丙基化(参见方案,(-)-IpcBH2 =(-)-异op基异戊基硼烷, TMS = Me3 Si)。产物对应于具有极性反转的正式迈克尔加成。