Abstract
The cyano complexes (η 5-C 5H 5)M(Ph 2PCH 2CH 2PPh 2)CN ( 4, M = Fe; 6, M = Ru) and (η 5-C 5H 5)Ru(PPh 3) 2CN ( 5) have been prepared by treatment of the corresponding chlorides with methanolic potassium cyanide. The nucleophilicity of the cyano ligand has been demonstrated by the reactions of 5 with a variety of mild electrophiles (MeI, EtI, allyl bromide, PhCH 2Br, ICH 2CH 2OH and cyclohexene oxide) to form the corresponding isonitrile cations.
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