BENZYLPHOSPHONIC DICHLORIDE synthesis

10synthesis methods

Product Name:BENZYLPHOSPHONIC DICHLORIDE
CAS Number:1499-19-0
Molecular formula:C7H7Cl2OP
Molecular Weight:209.0096

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Yield:1499-19-0 100%

Steps:

14 EXAMPLE 14

EXAMPLE 14 250 g of benzylphosphonic acid were heated at 180°C, and phosgene was introduced for 4 hours. Subsequently the reaction mixture was degassed at 100°C in vacuo. Then the mixture was distilled. 293 g of benzylphosphonic acid dichloride were obtained, b.p. 103°C under 0.3 mm Hg; m.p. 60°-62°C, corresponding to a yield of 100 percent of the theory.

References:

US3950413,1976,A

100-44-7 Synthesis