TY - JOUR
T1 - Transalkynylation and catalytic demercuration of bis(alkynyl)mercurials
T2 - Two alternative mechanisms
AU - Bedford, Robin B.
AU - Hill, Anthony F.
AU - Thompsett, Andrew R.
AU - White, Andrew J.P.
AU - Williams, David J.
PY - 1996
Y1 - 1996
N2 - The complexes [RhCl(CO)(PPh3)2] and [MHCl(CO)(PPh3)3] (M = Ru, Os) catalyse the demercuration of [Hg(C≡CR)2] (R = Ph, C6H4Me-4, Bun) 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)(PPh3)2] and its reintroduction into the catalytic cycle and (ii) the isolation of the iridium complex [IrCl(C≡CR)(HgC≡CR)-(CO)(PPh3)2].
AB - The complexes [RhCl(CO)(PPh3)2] and [MHCl(CO)(PPh3)3] (M = Ru, Os) catalyse the demercuration of [Hg(C≡CR)2] (R = Ph, C6H4Me-4, Bun) 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)(PPh3)2] and its reintroduction into the catalytic cycle and (ii) the isolation of the iridium complex [IrCl(C≡CR)(HgC≡CR)-(CO)(PPh3)2].
UR - http://www.scopus.com/inward/record.url?scp=0039057561&partnerID=8YFLogxK
U2 - 10.1039/cc9960001059
DO - 10.1039/cc9960001059
M3 - Article
AN - SCOPUS:0039057561
SN - 1359-7345
SP - 1059
EP - 1060
JO - Chemical Communications
JF - Chemical Communications
IS - 9
ER -