TRANSALKYNYLATION AND CATALYTIC DEMERCURATION OF BIS(ALKYNYL) MERCURIALS - 2 ALTERNATIVE MECHANISMS

Authors
BEDFORD RB HILL AF THOMPSETT AR WHITE AJP WILLIAMS DJ
Citation
Rb. Bedford et al., TRANSALKYNYLATION AND CATALYTIC DEMERCURATION OF BIS(ALKYNYL) MERCURIALS - 2 ALTERNATIVE MECHANISMS, Chemical communications, (9), 1996, pp. 1059-1060
Citations number
12
Categorie Soggetti
Chemistry
Journal title
Chemical communications → ACNP
ISSN journal
13597345
Issue
9
Year of publication
1996
Pages
1059 - 1060
Database
ISI
SICI code
1359-7345(1996):9<1059:TACDOB>2.0.ZU;2-S
Abstract
The complexes [RhCl(CO)(PPh(3))(2)] and [MHCl(CO)(PPh(3))(3)] (M = Ru, Os) catalyse the demercuration of [Hg(C=CR)(2)] (R = Ph, C(6)H(4)Me-4 , Bu(n)) to provide buta-1,3-diynes, however the reactions proceed by quite different mechanisms as indicated by (i) the isolation of [Ru{C( C=CR)= CHR}Cl(CO)(PPh(3))(2)] and its reintroduction into the catalyti c cycle and (ii) the isolation of the iridium complex [IrCl(C=CR)(HgC= CR)-(CO)(PPh(3))(2)].