Electrochemical synthesis of substituted aromatic amines in basi

Details Electrochemical synthesis of substituted aromatic amines in basi Electrochemical synthesis of substituted aromatic amines in basi

1987-05-18

1988-08-16

Andrews, R.

Chemistry: electrical and wave energy

Processes and products

C25G 300

Patent

active

047642637

ABSTRACT:
Substituted amino aromatic compounds such as 3-amino-4-hydroxybenzoic acid are prepared by electrolytically reducing the corresponding nitro aromatic compound in a basic medium at temperatures below 60.degree. C. and current densities greater than 50 milliamps per square centimeter. The aminohydroxybenzoic acids are useful in the preparation of polybenzoxazoles which are used to make fibers and composites having high strength and thermal stability.

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Belot et al., Tetrahedron Letters, 25, (47), 5347-5350 (1984).
Organic Electrochemistry, M. M. Baizer & H. Lund, 2nd Ed., Marcel Dekker, Inc., 295-313 (1983).

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