GENERATION OF TERTIARY PHOSPHINE-COORDINATED PD(0) SPECIES FROM PD(OAC)2 IN THE CATALYTIC HECK REACTION
GENERATION OF TERTIARY PHOSPHINE-COORDINATED PD(0) SPECIES FROM PD(OAC)2 IN THE CATALYTIC HECK REACTION
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DOI：
10.1246/cl.1992.2177
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发表时间：
1992-11-01
影响因子：
1.6
通讯作者：
HAYASHI, T
中科院分区：
文献类型：
--
作者：
OZAWA, F;KUBO, A;HAYASHI, T
二乙酸钯(II)与水(1当量/Pd)和(R)-2,2'-双(二苯基膦)-1,1'-联萘基((R)-BINAP)(3当量/Pd)在苯中在Et3N存在下反应，得到钯(0)物质Pd[(R)-BINAP]2(1当量/Pd)， (R)-BINAP 一氧化物（1 当量/Pd）和 Et3N.HOAc（2 当量/Pd）。反应进程受反应溶液中水含量的强烈影响。 Pd(OAc)2 在 PPh3 存在下以类似的过程进行还原，得到 Pd(PPh3)4 和 OPPh3。
Palladium(II) diacetate reacted with water (1 equiv./Pd) and (R)-2,2'-bis(diphenyl-phosphino)-1,1'-binaphthyl ((R)-BINAP) (3 equiv./Pd) in benzene in the presence of Et3N to give the palladium(0) species Pd[(R)-BINAP]2 (1 equiv./Pd), (R)-BINAP monoxide (1 equiv./Pd), and Et3N.HOAc (2 equiv./Pd). The progress of reaction strongly affected by the content of water in the reaction solution. The reduction of Pd(OAc)2 in the presence of PPh3 proceeded in a similar process to give Pd(PPh3)4 and OPPh3.