Process for producing 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-

Details Process for producing 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'- Process for producing 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-

1986-06-26

1987-10-20

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 3912

Patent

active

047015675

ABSTRACT:
A novel process for producing 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane of the formula (1) ##STR1## which comprises heat-treating 2,2-bis(4-hydroxyphenyl)propane in the presence of a superacid-type resin or a perfluoroalkanesulfonic acid.

REFERENCES:
patent: 4423254 (1983-12-01), Olah
patent: 4605789 (1986-08-01), Silvis et al.

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