New palladium(II)-catalyzed asymmetric 1,2-dibromo synthesis

New palladium(II)-catalyzed asymmetric 1,2-dibromo synthesis
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DOI:
10.1021/ol0273093
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发表时间:
2003-02-20
期刊:
影响因子:
5.2
通讯作者:
Henry, PM
Henry, PM
中科院分区:
化学1区
文献类型:
--
作者:
El-Qisairi, AK;Qaseer, HA;Henry, PM

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[图解]在含溴的水-四氢呋喃反应混合物中,手性单金属和双金属Pd(II)-Cu(II)催化剂氧化烯烃生成手性1,2-二溴。对于α-烯烃,ee约为95%,而大多数内部烯烃的对映选择性较低(类似于80%)。
[GRAPHICS]The oxidation of olefins by chiral monometallic and bimetallic Pd(II)-Cu(II) catalysts in bromide-containing aqueous-THF reaction mixtures produced chiral 1,2-dibromides. With alpha-olefins, the ee's were about 95% while most of the internal alkenes gave somewhat lower enantioselectivities (similar to80%).