TRISUBSTITUTED ALKENES FROM ALKYNES AND ARYL IODIDES BY BORON-TO-ZINC TRANSMETALATION AND PALLADIUM(0) CATALYZED CROSS COUPLING
TRISUBSTITUTED ALKENES FROM ALKYNES AND ARYL IODIDES BY BORON-TO-ZINC TRANSMETALATION AND PALLADIUM(0) CATALYZED CROSS COUPLING
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DOI：
10.1016/0022-328x(93)83047-y
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发表时间：
1993-02-09
影响因子：
2.3
通讯作者：
SREBNIK, M
中科院分区：
文献类型：
--
作者：
AGRIOS, KA;SREBNIK, M
由相应的三烯基硼烷通过与二乙基锌的金属交换获得的烯基乙基锌在0.19- 0.28mol%的Pd（PPh 3）4存在下与芳基碘偶联，以良好的分离产率产生三取代烯烃。在完全保留立体化学的情况下发生transmetabolism和随后的偶联。
Alkenylethylzincs, obtained from the corresponding trialkenylboranes by transmetallation with diethylzinc, couple with aryl iodides in the presence of Pd(PPh3)4, 0.19-0.28 mol%, to produce trisubstituted alkenes in good isolated yields. Both the transmetallation and subsequent coupling occur with complete retention of stereochemistry.