Water-soluble ruthenium(II) catalysts [RuCl2(η6-arene)-{P(CH2OH)3}] for isomerization of allylic alcohols and alkyne hydration

被引：86

作者：

Cadierno, V ^{[1
]}

Crochet, P ^{[1
]}

García-Garrido, SE ^{[1
]}

Gimeno, J ^{[1
]}

机构：

[1] Univ Oviedo, Fac Quim, Dept Quim Organ & Inorgan, Inst Univ Quim Organomet Enrique Moles,CSIC,Unida, E-33071 Oviedo, Spain

来源：

DALTON TRANSACTIONS | 2004年 / 21期

关键词：

D O I：

10.1039/b411177j

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The novel water-soluble ruthenium(II) complexes [RuCl2(eta(6)-arene){P(CH2OH)(3)}] 2a-c and [RuCl(eta(6)-arene){P(CH2OH)(3)}(2)][Cl] 3a-c have been prepared in high yields by reaction of dimers [{Ru(eta(6)-arene)(mu-Cl)Cl}(2)] (arene = C6H6 1a, p-cymene 1b, C6Me6 1c) with two or four equivalents of P(CH2OH)(3), respectively. Complexes 2/3a-c are active catalysts in the redox isomerization of several allylic alcohols into the corresponding saturated carbonyl compounds under water/n-heptane biphasic conditions. Among them, the neutral derivatives [RuCl2(eta(6)-C6H6){P(CH2OH)(3)}] 2a and [RuCl2(eta(6)-p-cymene){P(CH2OH)(3)}] 2b show the highest activities (TOF values up to 600 h(-1); TON values up to 782). Complexes 2/3a-c also catalyze the hydration of terminal alkynes.

引用

页码：3635 / 3641

页数：7

共 74 条

[1] Transition-metal-catalyzed addition of heteroatom-hydrogen bonds to alkynes [J].