Selective Cα-Cβ bond cleavage by water in allenylidene and alkenylvinylidene ruthenium complexes

被引：48

作者：

Bianchini, C ^{[1
]}

Peruzzini, M ^{[1
]}

Zanobini, F ^{[1
]}

Lopez, C ^{[1
]}

de los Rios, I ^{[1
]}

Romerosa, A ^{[1
]}

机构：

[1] CNR, Ist Studio Stereochim & Energet Composti Coordina, I-50132 Florence, Italy

来源：

CHEMICAL COMMUNICATIONS | 1999年 / 05期

关键词：

D O I：

10.1039/a900011i

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The Ru(II) complex mer,trans-[(PNP)RuCl2(PPh3)] [PNP = MeCH2CH2N(CH2CH2PPh2)(2)] reacts in refluxing THF with propargyl alcohols HC=CCRR'OH (R = R' = Me, Ph; R = Me, R' = Ph) yielding either the allenylidene complex fac,cis-[(PNP)RuCl2{C=C=CPh2}] or the alkenylvinylidene derivatives fac,cis-[(PNP)RuCl2{C=C(H)C(R)=CH2}] (R = Me, Ph); treatment of all these complexes in CH2Cl2 or THF with water results in the formation of the ruthenium carbonyl fac,cis-[(PNP)RuCl2(CO)] and free alkenes H2C=CRR' (R = R' = Me, Ph; R = Me, R' = Ph) via regioselective C-alpha-C-beta bond cleavage.

引用

页码：443 / 444

页数：2

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