
Angewandte Chemie - International Edition in English p. 993 - 995 (1996)
Update date:2022-09-26
Topics:
Kohler
Lewis
Raithby
The thiol complex 2 is former when the side-on-coordinated carbene ligand of cluster complex 1 reacts with H2S DBU. Abstraction of a hydride from complex 2 yields the thioketone complex 3 in a reversible reaction. A mechanism is proposed in which the hydride abstraction with [Ph3C][BF4] proceeds by transfer of a proton from the thiol group to the cyclohexadienyl ring bearing an anions charge. The hydrogen is finally removed as a hydride DBL = 1,8-diazabicyclo[5,4]undec-7-ene.
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(1996)