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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 398736Generated: October 26, 2026

P-Anisidine → 2-bromo-N-(4-methoxyphenyl)acetamide

https://huagongshe.com/reaction/398736

Reaction equation

Participants

RoleNameHCIDCharge
ReactantP-AnisidineHCID 7732—
ReactantBromoacetyl bromideHCID 61147—
ReactantDiisopropylethylamineHCID 81531—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
Product2-bromo-N-(4-methoxyphenyl)acetamideHCID 532213—

Reaction Conditions

Temperature-20 °C

Reaction Steps

The title compound was prepared via a modification of the literature procedure (Vloon, W. J.; Kruk, C.; Pandit, U. K.; Hofs, H. P.; McVie, J. G. J. Med. Chem. 1987, 30, 20-4.). To a solution of 4-methoxyaniline (4.93 g, 40.0 mmol) in methylene chloride (200 mL) was added diisopropylethylamine (7.66 mL, 44.0 mmol). The resulting mixture was cooled to -20° C., and bromoacetyl bromide (3.82 mL, 44.0 mmol) was added slowly. The reaction mixture was warmed to room temperature over 20 minutes and stirred additional 30 minutes. The reaction mixture was diluted with water (100 mL), stirred for 30 minutes and the organic layer was separated. The organic layer was washed with water (2×100 mL), brine (100 mL), dried over magnesium sulfate and concentrated in vacuo to afford a beige solid (9.68 g) which was recrystallized from ethyl acetate to provide bromo-N-(4'-methoxyphenyl) acetamide as a white crystal (6.31 g, 65%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05817489
Source datasetuspto-grants-1998_10
ORD IDord-066a8565646846d2b0fa50f1bf62c897
Source noteuspto-grants-1998_10