Method for purifying a dehydrochlorination mixture

Details Method for purifying a dehydrochlorination mixture Method for purifying a dehydrochlorination mixture

1977-02-09

1978-08-29

Morgenstern, Norman

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 3724

Patent

active

041105419

ABSTRACT:
A method is provided for making substantially pure 1,1-dichloro-2,2-bis(4-hydroxyphenyl)ethylene by dehydrochlorinating 1,1,1-trichloro-2,2-bis(4-hydroxyphenyl)ethane with a methanol solution of potassium hydroxide, followed by purifying the crude reaction product with a mixture of a hot aromatic solvent and a polar solvent, such as methanol.

REFERENCES:
patent: 3856556 (1974-12-01), Brzozowski et al.

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