Method of preparing brominated substituted anilines

Details Method of preparing brominated substituted anilines Method of preparing brominated substituted anilines

1999-09-29

2000-09-05

Barts, Samuel

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

Organic compounds

Amino nitrogen containing

564442, C07C20900

Patent

active

06114584&

ABSTRACT:
Disclosed is a method of preparing brominated substituted anilines. A mixture in water is formed of a substituted aniline having the general formula ##STR1## where each R is independently selected from halogen, alkyl and haloalkyl from C.sub.1 to C.sub.12, aryl, alkaryl, and aralkyl from C.sub.6 to C.sub.12, R does not occupy all three 2, 4, and 6 positions, and n is 1 to 4. To the suspension is added about 1.0 to about 1.1 equivalents of bromine for each bromine atom to be substituted onto the aromatic ring of said substituted aniline. No acid is present during the reaction.

REFERENCES:
patent: 4404402 (1983-09-01), Ladmer et al.
patent: 5045554 (1991-09-01), Alt et al.
G. H. Coleman et al., Organic Synthesis, Wiley, New York (1943), collected vol. II, pp. 592 to 594. Month Unavailable.
Giorgio Cerichell et al., "Surfactant Control of the Ortho/Para Ratio in the Bromination of Anilines," Tetrahedron Letters, vol. 30, No. 45, pp. 6209-6210 (1989); Month Unavailable.

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