Vinylacetylene (butenyne) derivatives as precursors of alkenylcarbene ruthenium complexes via allenylidene metal intermediates
- 1 January 1990
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 8,p. 641-643
- https://doi.org/10.1039/c39900000641
Abstract
Complexes (η6-arene)(PR3)RuCl2(1a—c) react with HCC–C(R1)CHR2 derivatives in methanol to afford in one step the alkenylcarbene–ruthenium cations [(η6-arena)(PR3)ClRuC(OMe)CHC(R1)CH2R2]+(2)–(6)(R1 and R2= H or Me) which on deprotonation give cyclometallacarbenes (7)–(8); on the basis of labelling experiments the formation of (2)–(6) involves an allenylidene intermediate RuCCC(R1)(CH2R2)+ instead of the expected allylcarbene moiety RuC(OMe)CH2C(R1)(CHR2)+.Keywords
This publication has 0 references indexed in Scilit: