TRAPPING OF CP-ASTERISK-W(NO)(ETA(2)-PHC-CH), THE KEY INTERMEDIATE INTHE C-H ACTIVATION OF ALKANES BY CP-ASTERISK-W(NO)(CH2SIME3)(CPH=CH2)

Authors
LEGZDINS P LUMB SA
Citation
P. Legzdins et Sa. Lumb, TRAPPING OF CP-ASTERISK-W(NO)(ETA(2)-PHC-CH), THE KEY INTERMEDIATE INTHE C-H ACTIVATION OF ALKANES BY CP-ASTERISK-W(NO)(CH2SIME3)(CPH=CH2), Organometallics, 16(9), 1997, pp. 1825-1827
Citations number
21
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Organometallics → ACNP
ISSN journal
02767333
Volume
16
Issue
9
Year of publication
1997
Pages
1825 - 1827
Database
ISI
SICI code
0276-7333(1997)16:9<1825:TOCTKI>2.0.ZU;2-P
Abstract
Thermolysis of the vinyl nitrosyl complex CpW(NO)(CH2SiMe3)(CPh=CH2) (1) in ethyl acetate or acetonitrile affords the oxa- or azametallacyc les CpW(NO)(eta(2)-OC(Me)(OEt)CH=CPh) (2) or Cp*W(NO)(eta(3)-HNC(Me)= NC(=CH2)CH=CPh) (3) and CpW(NO)(OH)(eta(2)-HN=C(Me)CH=CPh) (4), respe ctively. Kinetic and mechanistic studies provide compelling evidence f or a pathway involving initial rate-limiting unimolecular elimination of SiMe4 from 1 with concomitant formation of CpW(NO)(eta(2)-CPh=CH), (A).