OLIGOPHOSPHANE LIGANDS .32. CATALYTIC DIMERIZATION OF 1-ALKYNES TO LINEAR 1-EN-3-YNES ON CIS-ARYLHYDRIDORUTHENIUM(II) CHELATE COMPLEXES - MOLECULAR-STRUCTURE OF (PP3)RUH(C6H4CF3-3) (PP3=P(CH2CH2CH2PME2)3)

被引：44

作者：

DAHLENBURG, L

FROSIN, KM

KERSTAN, S

WERNER, D

机构：

[1] Institut für Anorganische, Angewandte Chemie der Universität Hamburg, W-2000 Hamburg 13

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1991年 / 407卷 / 01期

关键词：

D O I：

10.1016/0022-328X(91)83145-T

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The complexes L4RuH(C6H5) with L4 = P(CH2CH2CH2PMe2)3, N(CH2CH2PPh2)3, and MeSi(CH2PMe2)3/PMe3 all serve as catalysts for the dimerization of 1-alkynes, RC-CH (R = C6H5, n-C4H9, t-C4H9). The reaction proceeds to yield 1,4-disubstituted 1-en-3-ynes, RCH = CHC-CR, with varying E/Z stereoselectivities, presumably via intermediates containing 1-en-3-yn-2-yl ligands, -C(C-CR) = CHR. The X-ray structure analysis of (pp3)RuH(C6H4CF3-3) (pp3 = P(CH2CH2CH2PMe2)3) which is available from (pp3)RuCl2 by reduction with sodium amalgam in C6H5CF3 but not from (pp3)RuH(C6H5) and C6H5CF3 by transmetalation, is also reported.

引用

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页码：115 / 124

页数：10

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