Process for the preparation of 4-phenoxy-phenols

Details Process for the preparation of 4-phenoxy-phenols Process for the preparation of 4-phenoxy-phenols

1980-02-28

1982-02-23

Helfin, Bernard

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

Organic compounds

Oxygen containing

568638, 568633, C07C 4126

Patent

active

043169937

ABSTRACT:
Diazotization of 4-phenoxy-anilines in aqueous sulfuric acid of 60 to 75% strength and decomposition of the resulting diazonium compound in sulfuric acid of the same concentration range yields the corresponding phenols in high yields and quality. These phenols are intermediate for the corresponding 4-phenoxy-phenoxy alkane carboxylic acids which are pharmaceuticals capable of reducing the blood serum lipid level.

REFERENCES:
patent: 2565300 (1951-08-01), Faith et al.
patent: 3423391 (1969-01-01), Kindler et al.
patent: 3914325 (1975-10-01), Gavin et al.
patent: 3998642 (1976-12-01), Lau et al.
Mahoney et al., WADC Technical Report, Sep. 1959, 59-173, p. 43.
Ullmanns Encyklopadie der Technischen Chemie, vol. 5, (1954), 812-813.
Gilman, Organic Synthesis Coll., vol. I, (1932), pp. 396-397.
Grillot et al., J.A.C.S., vol. 67, (1945), 1968-1969.
Weygand/Hilgetag, Preparative Organic Chemistry, (1972), pp. 343-344.
Adams et al., I. G. Farbenindustrie BIOS Final Report 1149, at 75-77.
Ullmanns Encyklopadie, 4th Edition, vol. 10, pp. 126-127.

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