Process for making bis(hydroxyphenyl)methanes

Details Process for making bis(hydroxyphenyl)methanes Process for making bis(hydroxyphenyl)methanes

1982-03-29

1983-08-23

Lone, Werren B.

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

Organic compounds

Oxygen containing

568728, C07C 3916

Patent

active

044005547

ABSTRACT:
Bis(hydroxyphenyl)methanes are prepared by reaction of phenol and formaldehyde in a two-phase mixture containing aqueous phosphoric acid. The reaction conditions can be selected to provide high yields of bis(hydroxyphenyl)methanes or to yield bis(hydroxyphenyl)methanes containing a high concentration of the 4,4'-isomer.

REFERENCES:
patent: 2812364 (1957-11-01), Farnham et al.
"Hackh's Chemical Dictionary" 3rd Ed. (1944) McGraw-Hill pub., p. 649.

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