Method for preparing spirobiindane bisphenols

Details Method for preparing spirobiindane bisphenols Method for preparing spirobiindane bisphenols

1986-10-10

1987-10-20

Lone, Werren B.

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

Organic compounds

Oxygen containing

568729, C07C 3917

Patent

active

047015667

ABSTRACT:
Spirobiindane bisphenols are prepared by contacting a mixture of a bisphenol or a 4-isopropenylphenol and a 1-(4-hydroxyphenyl)indanol with a metal halide Lewis acid or an alkanesulfonic acid. High purity spirobiindane bisphenols may be prepared by employing a purification sequence, which preferably includes a step of precipitation of the product with water from a methanol-methylene chloride solution.

REFERENCES:
patent: 4605789 (1986-08-01), Silvis et al.

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