gcoo_a_1033411_sm3765.doc (277 kB)
Reactions of [CpM(CO)3]2 (M = Mo, W) with Ph3SnSR: formation of CpM(CO)3(SnPh3) and CpM(CO)2(κ2-SR) via Sn–S bond cleavage
Version 3 2015-05-27, 13:55
Version 2 2015-05-27, 13:55
Version 1 2015-05-27, 13:55
journal contribution
posted on 2015-05-27, 13:55 authored by MD. Rafique Al-Mamun, Shishir Ghosh, Shariff E. Kabir, Jagodish C. Sarker, Graeme Hogarth, Brian K. NicholsonThe mixed-metal compounds CpM(CO)3(SnPh3) (1, M = Mo; 2, M = W) are obtained as the only isolable products from the reactions of [CpM(CO)3]2 with PhSSnPh3, whereas similar reactions with pymSSnPh3 (pymS = pyrimidine-2-thiolate) lead to the formation of chelate compounds CpM(CO)2(κ2-pymS) (3, M = Mo; 4, M = W). Separate experiments show that CpM(CO)3(SnPh3) are precursors of CpM(CO)2(κ2-pymS). CpM(CO)3(SnPh3) can also be synthesized in slightly improved yield from the direct reaction between [CpM(CO)3]2 and Ph3SnH, while the yield of CpM(CO)2(κ2-pymS) becomes negligible when [CpM(CO)3]2 is treated with pymSH.
