188759-74-2Relevant articles and documents
Trapping of Cp*W(NO)(η2-PhC≡CH), the key intermediate in the C-H activation of alkanes by Cp*W(NO)(CH2SiMe3)(CPh≡CH2)
Legzdins, Peter,Lumb, Sean A.
, p. 1825 - 1827 (1997)
Thermolysis of the vinyl nitrosyl complex Cp*W(NO)(CH2SiMe3)(CPh=CH2) (1) in ethyl acetate or acetonitrile affords the oxa- or azametallacycles Cp*W(NO)(η2-OC(Me)(OEt)CH=CPh) (2) or Cp*W(NO)(η3-HNC(Me)=NC(=CH2)CH=CPh) (3) and Cp*W(NO)-(OH)(η2-CN=C(Me)CH=CPh) (4), respectively. Kinetic and mechanistic studies provide compelling evidence for a pathway involving initial rate-limiting unimolecular elimination of SiMe4 from 1 with concomitant formation of Cp*W(NO)(η2-CPh≡CH) (A).