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Titolo:
Olefin-metathesis reactions using vinylideneruthenium(II) complexes as catalyst precursors
Autore:
Katayama, H; Urushima, H; Ozawa, F;
Indirizzi:
Osaka City Univ, Fac Engn, Dept Appl Chem, Sumiyoshi Ku, Osaka 5588585, Japan Osaka City Univ Osaka Japan 5588585 , Sumiyoshi Ku, Osaka 5588585, Japan
Titolo Testata:
JOURNAL OF ORGANOMETALLIC CHEMISTRY
fascicolo: 1, volume: 606, anno: 2000,
pagine: 16 - 25
SICI:
0022-328X(20000714)606:1<16:ORUVCA>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
RING-OPENING METATHESIS; RUTHENIUM ALLENYLIDENE COMPLEXES; CLOSING METATHESIS; NORBORNENE DERIVATIVES; CARBENE COMPLEXES; CRYSTAL-STRUCTURE; CYCLIC OLEFINS; POLYMERIZATION; REACTIVITY; WATER;
Keywords:
vinylidene complexes; ruthenium; ring-opening metathesis polymerization (ROMP); ring-closing metathesis (RCM); molecular weight control;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
66
Recensione:
Indirizzi per estratti:
Indirizzo: Ozawa, F Osaka City Univ, Fac Engn, Dept Appl Chem, Sumiyoshi Ku, Osaka 5588585, Japan Osaka City Univ Osaka Japan 5588585 hi Ku, Osaka 5588585, Japan
Citazione:
H. Katayama et al., "Olefin-metathesis reactions using vinylideneruthenium(II) complexes as catalyst precursors", J ORGMET CH, 606(1), 2000, pp. 16-25

Abstract

Vinylideneruthenium(II) complexes of the type RuCl2(=C=CHR)L-2 (R = Bu', ferrocenyl; L = PPr3' PCy3), which are easily accessible from [RuCl2(p-cymene)](2) and terminal alkynes, have been found to serve as good catalyst precursors for ring-opening metathesis polymerization (ROMP) of cyclic alkenes and ring-closing metathesis (RCM) of alpha,omega-dienes, alpha,omega-enynes, and dienynes. These complexes possess high stability toward air and heat,compared with the metathesis-active alkylidenerutheniums. Molecular weightcontrol of poly(norbornene) in extremely wide range (M-n/10(3) = 500-4) has been achieved by using heteroatom-substituted vinylic compounds such as ethyl vinyl ether and phenyl vinyl sulfide as chain-transfer agents for ROMP. (C) 2000 Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 08:10:21