Inorganic Chemistry, Vol.45, No.23, 9166-9168, 2006
Expanding the scope of sulfur-centered Arbuzov rearrangement in diethyl/di-n-propyl sulfite for the synthesis of mixed-ligand di-n-butyltin alkanesulfonates
A one-pot reaction between di-n-butyltin oxide and diethyl/di-n-propyl sulfite in the presence of an equimolar amount of alkyl iodide proceeds via sulfur-centered Arbuzov rearrangement to afford the corresponding di-n-butyltin (alkoxy)alkanesulfonates n-Bu2Sn(OR ')-OS(O)(2)R [R = R ' = Et (1), n-Pr (2); R = Me, R ' = Et (3), n-Pr (4)]. The compounds 1 and 3 react with methylphosphonic acid under mild conditions to give [n-Bu2Sn(OS(O)(2)R)OP(O)(OH)Me](n) [R = Et (5), Me (6), respectively].