SYNTHESE UND CHARAKTERISIERUNG VON O-ALKYL-O'-TRIORGANOSTANNYLPHOSPHONATEN R₃SnOP(O)H(OR')

Abstract

The synthesis of O-alkyl-O'-triorganostannylphosphonates R₃SnOP(O)H(OR') is described. The compounds 1–3 (a-d) (R=Ph, Cy, Bu; R'=Me, Et, i-Pr, Bu) have been prepared by reaction of dialkylphosphonates with triorganotin hydroxides in toluene or benzene at higher temperature. The same products have been obtained by interaction of the phosphonates with hexaorgano distannoxanes without any solvents in an exothermic reaction or with triorganoalkoxystannanes in toluene at higher temperature. The interaction of dialkylphosphonates with triorganostannyl-oxygen derivatives seems to be a general synthetic pathway for obtaining O-alkyl-O'-triorganostannylphosphonates.

Key Words:

• Stannyl alkyl phosphonates
• triorganotin hydroxides
• triorganotinoxides
• dialkylphosphonates