Process for preparing p-[[p-(phenylazo)phenyl]azo]phenol

Details Process for preparing p-[[p-(phenylazo)phenyl]azo]phenol Process for preparing p-[[p-(phenylazo)phenyl]azo]phenol

1977-08-04

1979-02-27

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260208, C09B 3106

Patent

active

041418921

ABSTRACT:
A process for preparing the compound, or dye, ##STR1## by forming aminoazobenzene employing a slight excess of sodium nitrite in the diazotization of aniline and, without isolation, diazotizing the monoazo base and coupling the diazonium salt into phenol.

REFERENCES:
patent: 2072252 (1937-03-01), Ellis
patent: 2782185 (1957-02-01), Merian

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