Thiocarbene complexes of chromium: sulfur to carbon migration of an allyl group upon alkyne insertion

Article abstract of DOI:10.1016/0022-328X(89)85167-8

(CO)5Cr=C(CH3)S(CH2CH=CH2) (7) reacts with diphenylacetylene by insertion of the alkyne and of CO to give the unsaturated thiolactones H2C=CHCH3(CH3)CSC(=O)C(Ph)=CPh and CH3(H)CSC(=O)C(Ph)=CPh, the former arising from migration of the allyl group from sul