Tris(trimethylsilyl) phosphite as key synthon for convenient synthesis of new organosilicon(phosphorus)-containing N-heterocycles.

The new functionalized hydroxymethylphosphonic and methylenediphosphonic acids are synthesized via unique reaction of tris(trimethylsilyl) phosphite and N -formyl N -heterocycles, N-substituted 4-piperidones, 3-quinuclidone, and 2-adamantanone at the presence of effective catalyst – trimethylsilyl triflate under mild conditions. [ABSTRACT FROM AUTHOR]