Process for the preparation of aminodiphenylamine compounds

Details Process for the preparation of aminodiphenylamine compounds Process for the preparation of aminodiphenylamine compounds

1995-09-15

1997-09-30

Burn, Brian M.

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

Organic compounds

Amino nitrogen containing

564406, C07C20950

Patent

active

056727542

ABSTRACT:
The invention relates to a process for the preparation of compounds of formula ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl or sulfo, and R.sub.2 is hydrogen or C.sub.1 -C.sub.4 alkyl, which process comprises reacting a compound of formula ##STR2## wherein Hal is halogen and R.sub.1 has the meaning given above, with a compound of formula ##STR3## wherein Y is a saponifiable group and R.sub.2 has the meaning given above, to give the compound of formula ##STR4## wherein R.sub.1, R.sub.2 and Y have the meanings given above, and saponifying the compound of formula (4) to give the compound of formula (1).
The compounds of formula (1) are suitable for the synthesis of dyes.

REFERENCES:
patent: 3994873 (1976-11-01), Sommer et al.
patent: 4254054 (1981-03-01), Arndt et al.
Ber. dt. Chem., vol. 41, pp. 3744-3755, 1908.
J. Prakt. Chem., vol. 46, pp. 565-574, 1892.
Chemical Abstract, 115, 10847p (Apr. 1991).
CA62:16187(g). Jun. 1965.
CA51:2598(d). Jan. 1957.
CA58:2020(b) Feb. 1963.
CA54:6302(b) Apr. 1960.

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