Process for producing 2,2-bis(4'hydroxyphenyl) propanes

Details Process for producing 2,2-bis(4'hydroxyphenyl) propanes Process for producing 2,2-bis(4'hydroxyphenyl) propanes

1987-09-01

1989-03-21

Lone, Werren B.

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

Organic compounds

Oxygen containing

568722, C07C 3916

Patent

active

048145203

ABSTRACT:
Disclosed is a process for producing 2,2-bis(4'-hydroxyphenyl)propanes represented by the following general formula (2): ##STR1## (wherein R.sup.2 represents hydrogen atom or a hologen atom and the four R.sup.2 may be identical or different, R.sup.3 and R.sup.4 which may be identical or different represent hydrogen atom, an alkyl group, an aryl group, an aralkyl group, a cycloalkyl group, an alkoxy group or a halogen atom, p and q which may be identical or different represent integers of 1-4, a is 2 or 3 and b is 2 when a is 2 and is 1 when a is 3), characterized by reacting at least one phenol represented by the following formula (1): ##STR2## (wherein R.sup.1 has the same meaning as R.sup.3 and R.sup.4 and n is an integer of 1-4) with an unsaturated carbon compound represented by the general formula: C.sub.3 R.sub.4.sup.2 (wherein R.sup.2 has the same meaning as in the formula (2) and the four R.sup.2 may be identical or different) in the presence of hydrochloric acid.

REFERENCES:
patent: 2884462 (1959-04-01), Henry
patent: 4239918 (1980-12-01), Keeley

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