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4-bromo-2-phenyl aniline synthesis

14synthesis methods
-

Yield:5455-13-0 90%

Reaction Conditions:

with N-Bromosuccinimide in N,N-dimethyl-formamide at 0; for 2 h;

Steps:

14-15; 60 The synthesis of 5-bromobiphenyl-2-amine (186-2):

To a solution of 2-aminobiphenyl (10 g, 59.1 mmol) in DMF (30 mL) was added NBS (10.4 g, 59 mmol,) at 0 °C, and stirred for 2 hours. After the reaction was complete, the reaction mixture was added to water, and filtered to give 186-2 (13 g, about 90% yield) as a solid. MS Calcd.: 247.7; MSFound: 248.7[M + H]+.

References:

WO2021/195346,2021,A1 Location in patent:Paragraph 00315-00318; 00618-00619