Issue 16, 2015

Preparation of pyranylidene complexes of ruthenium

Abstract

The reaction of the chloro-complex RuCl(η5-C5H5)(PPh3)[P(OMe)3] with alkylpropiolates HC[triple bond, length as m-dash]CCOOR1 in alcohol R2OH affords pyranylidene derivatives [Ru(η5-C5H5){[double bond, length as m-dash]C(COOR1)C(H)C(H)C(OR1)O}(PPh3){P(OMe)3}]BPh4 (1, 3) and alkoxycarbene complexes [Ru(η5-C5H5){[double bond, length as m-dash]C(OR2)(CH2COOR1)}(PPh3){P(OMe)3}]BPh4 (2, 4). A reaction path for the formation of compounds 1–4, involving reactions on a vinylidene intermediate complex, is also discussed. The complexes were characterized spectroscopically (IR and 1H, 13C, 31P NMR) and by X-ray crystal structure determination of [Ru(η5-C5H5){[double bond, length as m-dash]C(COOMe)C(H)C(H)C(OMe)O}(PPh3){P(OMe)3}]BPh4 (1).

Graphical abstract: Preparation of pyranylidene complexes of ruthenium

Supplementary files

Article information

Article type
Paper
Submitted
29 Jan 2015
Accepted
12 Mar 2015
First published
24 Mar 2015
This article is Open Access
Creative Commons BY license

Dalton Trans., 2015,44, 7411-7418

Preparation of pyranylidene complexes of ruthenium

G. Albertin, S. Antoniutti, M. Bortoluzzi, A. Botter and J. Castro, Dalton Trans., 2015, 44, 7411 DOI: 10.1039/C5DT00418G

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