TETRAPHENYL PYROPHOSPHATE synthesis

12synthesis methods

Product Name:TETRAPHENYL PYROPHOSPHATE
CAS Number:10448-49-4
Molecular formula:C24H20O7P2
Molecular Weight:482.36

2524-64-3 Synthesis

2524-64-3
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10448-49-4
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Yield:10448-49-4 98.7%

Reaction Conditions:

in water;

Steps:

1 EXAMPLE 1

EXAMPLE 1 This Example illustrates the preparation of tetraphenyl pyrophosphate. To 10 moles of diphenylchlorophosphate (2686 gm) heated to 70° C. under nitrogen, was added 5 moles (90 gm) of water over a period of five hours. The temperature was kept at 75° C. throughout the addition. At the end of the addition period, the reaction mixture was kept at 75°-80° C. for one hour, and the temperature was then raised and maintained at 120° C. for three hours. It was then raised to 140° C. and maintained at that temperature for an additional three hours. A reddish orange oil (2430 gm, 98.7% yield) was obtained and assayed at 96% purity by ³¹ P nmr.

References:

US5041596,1991,A