Triethyl phosphite → (4-Bromophenyl)methyl diethyl phosphite

Participants

Reaction Conditions

Reaction Steps

A reaction vessel was loaded with 4-bromobenzyl bromide and 1 equivalent of triethyl phosphite. The content of the chamber was heated to 140° C. for 6 hours with stirring. Excess triethyl phosphite was removed from the mixture by vacuum distillation to yield phosphorous acid-4-bromobenzyl diethylester. One equivalent of cyclohexanone and 1.2 equivalent of sodium hydride in a mixed solvent of toluene-dimethylsulfoxide were reacted with the phosphorous acid-4-bromobenzyl diethyl ester whith heating moderately.

Provenance & Evidence