3014. Dibenzyl Phosphite

Nomenclature

CAS number: 17176-77-1
Phosphonic acid bis(phenylmethyl) ester; benzyl phosphite; dibenzyl hydrogen phosphite; dibenzyl phosphonate.
C14H15O3P; mol wt 262.24.
C 64.12%, H 5.77%, O 18.30%, P 11.81%.

Description and references

Prepd by adding dropwise a mixture of dimethylaniline and benzyl alc to a soln of phosphorus trichloride in benzene: F. R. Atherton et al., J. Chem. Soc. 1945, 382; US 2490573 (1949 to Hoffmann-La Roche). 1H, 13C, 31P NMR data: J. Perruchon et al., Synthesis 2007, 3553.

Chemical structure

Properties

Liquid. mp 0 to 5°. bp0.1 160-164°; (decompn); bp0.001 110-120°; also reported as bp0.001 120-130°. nD18 1.5521.

Use

In preparation of N-phosphorylated amines.