A dibasic carbon centre: kinetic and thermodynamic studies on the deprotonation of trans-[MoCl(NCH2CO2Me)(Ph2PCH2CH2PPh2)2]+
Abstract
A kinetic and thermodynamic analysis of the reaction between trans-[MoCl(NCHRCO2Me)(dppe)2]+(R = H or Me, dppe = Ph2PCH2CH2PPh2) and MeO– shows that when R = H both NCH2 protons are ionisable, with the pKas of trans-[MoCl(NCH2CO2Me)(ppe)2]+(pKa= 11.2) and trans-[MoCl(NCHCO)2Me(dppe)2](pKa= 11.5) being remarkably similar.