High yield process for preparing 4,4'-biphenol and para-alkylben

Details High yield process for preparing 4,4'-biphenol and para-alkylben High yield process for preparing 4,4'-biphenol and para-alkylben

1983-07-15

1984-11-13

Lone, Werren B.

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

Organic compounds

Oxygen containing

585319, C07C 3915

Patent

active

044827555

ABSTRACT:
4,4'-biphenol and tert-alkyl substituted alkyl benzene derivatives are produced by hydrogenating a tetraalkyl diphenoquinone in an alkyl benzene solvent solution under relatively mild conditions in the presence of a heterogeneous catalyst, removing said catalyst from the resultant tetraalkyl biphenol and thereafter heating said alkyl benzene solvent solution in the presence of a strong acid catalyst to form relatively pure biphenol in high yields and a para substituted alkyl benzene derivative.

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M. Tashiro, "Selective Synthesis of Aromatic Cmpds. Using Positional Protective Groups," Synthesis (1979) pp. 921-924.

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