Carbonsulfur bond cleavage in CpRu(η 5-thiophene) + and subsequent reactions of the butadiene-thiolate product

Abstract

The complexes CpRu(η 5-Th) + ( 1) where Th is thiophene or a methyl-substituted thiophene, react with hydridges such as H 2Al(OCH 2CH 2OMe) 2 − to give (eq. 3) the CS cleaved butadiene-thiolate product 3. Subsequent reactions of 3 are shown: ▪ This scheme is not intended to indicate that all reactions were performed on the thiophene complex; many were carried out using the methyl-substituted thiophene analogs. Structures of complexes of the types 6 and 9 were established by X-ray diffraction studies. Possible mechanisms for reaction 3 are considered, and stereochemistries