Reversible cyclisation reactions to form ruthenafurans: X-ray crystal structure of [Ru(CO){C(Ph)OC(OEt)
CH}Cl(PMe2Ph)2]
Abstract
Ruthenafurans [R[graphic omitted]H}ClL2](L = PMe2Ph, R = CHCHOEt, CH
CHCMe3, Me or Ph; L = PMe3, R = CH
CHOEt or CH
CHPh) can be formed reversibly from [Ru(CO)2RClL2] and EtOC
CH: the rate-determining forward step involves the formation of the intermediate [Ru(CO)(COR)ClL2], which can be trapped when the reverse reaction occurs in the presence of Me3CNC.