Process for the preparation of 2,6-dialkylaniline from brominate

Details Process for the preparation of 2,6-dialkylaniline from brominate Process for the preparation of 2,6-dialkylaniline from brominate

1981-07-06

1982-07-20

Doll, John

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

Organic compounds

Amino nitrogen containing

564305, 564437, C07C 8504

Patent

active

043407579

ABSTRACT:
A process for the preparation of 2,6-dialkylaniline which comprises the reaction of 1,3-dialkyl-5-tertiary-butylbenzene with molecular bromine to form 2-bromo-1,3-dialkyl-5-tertiary-butylbenzene, which is subsequently reacted with 1,3-dialkylbenzene in the presence of hydrogen fluoride to form a mixture of 2-bromo-1,3-dialkylbenzene and 1,3-dialkyl-5-tertiary-butylbenzene, which is then reacted with ammonia in the presence of a catalytic amount of cuprous halide.

REFERENCES:
patent: 1607824 (1926-11-01), Hale et al.
patent: 1775360 (1930-09-01), Williams
patent: 1935515 (1933-11-01), Mills
patent: 2062349 (1936-12-01), Calcott et al.
patent: 3057922 (1962-10-01), Luvisi et al.

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