REACTIVITY OF RU(H)(H-2)CL(PCY3)(2) WITH PROPARGYL AND VINYL CHLORIDES - NEW METHODOLOGY TO GIVE METATHESIS-ACTIVE RUTHENIUM CARBENES

Authors
WILHELM TE BELDERRAIN TR BROWN SN GRUBBS RH
Citation
Te. Wilhelm et al., REACTIVITY OF RU(H)(H-2)CL(PCY3)(2) WITH PROPARGYL AND VINYL CHLORIDES - NEW METHODOLOGY TO GIVE METATHESIS-ACTIVE RUTHENIUM CARBENES, Organometallics, 16(18), 1997, pp. 3867-3869
Citations number
24
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Organometallics → ACNP
ISSN journal
02767333
Volume
16
Issue
18
Year of publication
1997
Pages
3867 - 3869
Database
ISI
SICI code
0276-7333(1997)16:18<3867:RORWPA>2.0.ZU;2-T
Abstract
A procedure for generating the ruthenium hydride complex Ru(H)(H-2)Cl( PCy3)(2) in 95% yield is presented. Following a novel insertion-elimin ation pathway, this hydride can. react with propargyl or vinyl halides to make metathesis-active vinyl and alkyl carbene species with the ge neral formulas (PCy3)(2)Cl2Ru=CH-CH=CR2 and (PCy3)(2)Cl2Ru=CHR, respec tively. Tertiary propargyl chlorides work best, giving Ru-vinyl carben es in extremely high yield.