Method of making coupled 4,6-dibenzoylresorcinols

Details Method of making coupled 4,6-dibenzoylresorcinols Method of making coupled 4,6-dibenzoylresorcinols

1996-12-23

1998-01-27

Reamer, James H.

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

Organic compounds

Oxygen containing

A61K 3535

Patent

active

057124191

ABSTRACT:
An improved method of making methylene-bridged 4,6-dibenzoylresorcinol dimers in a single step in high yield quantities is provided. The method heats a 4,6-dibenzoylresorcinol (DBR) with a para-aldehyde or an aromatic aldehyde in a carboxylic acid solvent in the presence of a strong acid catalyst.

REFERENCES:
patent: 3506610 (1970-04-01), Dressler et al.

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