SILYL PHOSPHITES V. THE REACTIONS OF TRIS(TRIMETHYLSILYL) PHOSPHITE WITH CARBONYL COMPOUNDS

Abstract
When tris(trimethylsilyl) phosphite (1) was treated with aldehydes, ketones, or α,β-unsaturated aldehydes at room temperature, the 1,2-adducts were obtained in high yields (75–94%). On the other hand, when α,β-unsaturated ketones or ethyl crotonate was used, the 1,4-adducts were obtained in high yields (71–84%). The silylated products were smoothly hydrolyzed to the corresponding phosphonates in almost quantitative yields by addition of alcohol or water.