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22585-81-5

1-chloro-4-dichlorophosphorylbenzene synthesis

5synthesis methods
-

Yield:22585-81-5 92%

Steps:

9 EXAMPLE 9

EXAMPLE 9 90 g of p-chlorophenylphosphonic acid dimethyl ester were heated in the apparatus described in Example 1 at 110°C. At this temperature phosgene was introduced for 5.5 hours and subsequently the reaction mixture was distilled. 86 g of p-chlorophenylphosphonic acid dichloride were obtained, b.p. 91°-93°C.0.2 mm Hg corresponding to a yield of 92 percent of the theory.

References:

US3950413,1976,A