This website uses cookies to give you the best user experience. If you continue without changing your settings we'll assume you are happy to receive all RSC cookies. You can change your cookie settings by navigating to our Privacy and Cookies page and following the instructions. These instructions are also obtainable from the privacy link at the bottom of any RSC page.
Lite Version|Standard version
Home > Chemical Science >
To gain access to this content please
Log in via your home Institution.
Log in with your member or subscriber username and password.
Download


Buy PDF Add PDF to Basket (£42.50*)
*Exclusive of taxes
This article contains 5 page(s)
Abstract | Cited by

We report the [Y{N(SiMe3)2}3] catalysed dehydrocoupling of triphenylphosphonium methylide with phenylsilane to form the silylated ylide Ph3PCHSiH2Ph. Attempts to catalyse this reaction with the related group 2 hexamethyldisilazide base [Ca{N(SiMe3)2}2] led to the catalytic formation of the phosphine Ph2PCHSiH2Ph along with Ph2PMe in low selectivity, while group 1 bases [M{N(SiMe3)2}] (M = Li, Na, K) proved ineffective for both transformations. The stoichiometric reactions of Ph3PCH2 with [M{N(SiMe3)2}n] have been investigated and allowed the isolation and characterisation of a cyclometallated phosphonium methylide complex of yttrium.

Graphical abstract: A metal–amide dependent, catalytic C–H functionalisation of triphenylphosphonium methylide

Page: ^ Top


Enter Keywords, author, title,reference, or DOI
Log in | Register