Process for making bis(hydroxyphenyl)methanes

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

C - Chemistry, Metallurgy

07

C

260/617.9

C07C 37/00 (2006.01) C07C 37/20 (2006.01) C07C 39/12 (2006.01) C07C 39/18 (2006.01)

Patent

CA 1181431

A PROCESS FOR MAKING BIS(HYDROXYPHENYL)METHANES ABSTRACT Bis(hydroxyphenyl)methanes are prepared by reaction of phenol and formaldehyde in a two-phase mixture con- taining aqueous phosphoric acid. The reaction conditions can be selected to provide high yields of bis(hydroxy- phenyl)methanes or to yield bis(hydroxyphenyl)methanes containing a high concentration of the 4,4'-isomer.

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