Bis-mixed-carbene ruthenium-thiolate-alkylidene complexes: synthesis and olefin metathesis activity

被引：5

作者：

Dahcheh, Fatme ^{[1
]}

Stephan, Douglas W. ^{[1
]}

机构：

[1] Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada

来源：

DALTON TRANSACTIONS | 2015年 / 44卷 / 04期

关键词：

RING-CLOSING METATHESIS; INDENYLIDENE COMPLEXES; NOBEL LECTURE; IN-SITU; CATALYSTS; EFFICIENT; LIGANDS; BEARING; RUCL2(=CHR)(PR(3))(2); POLYMERIZATION;

D O I：

10.1039/c4dt03137g

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of bis-carbene Ru-hydride species, including (IMes)(Im(OMe)(2))(PPh3)RuHCl (1) and (SIMes)(Me(2)Im(OMe)(2))(PPh3) RuHCl (2) were prepared and subsequently shown to react with aryl-vinyl-sulfides to give the bis-carbene-alkylidene complexes: Im(OMe)(2)(SIMes)RuCl(SR)(=CHCH3) (R = p-FC6H4 (3), p-(NO2)C6H4 (4)), Im(OMe)(2)(IMes)RuCl(-CHCH3)(SPh) (5), Me(2)Im(OMe)(2)(SIMes)RuCl(-CHCH3)(SPh) (6), Im(OMe)(2)(SIMes)(F5C6S) RuCl(=CHR) (R = C4H9 (9), C5H11 (10)). The activity of these species in the standard Grubbs' tests for ring-opening metathesis polymerization, ring-closing and cross-metathesis are reported. Although these thiolate derivatives are shown to exhibit modest metathesis activities, the reactivity is enhanced in the presence of BCl3.

引用

页码：1724 / 1733

页数：10

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