N-bromobutanimide → HCID 178472352, compound

Participants

Reaction Steps

A solution of cis/trans-4-(4-methyl-thiazol-2-yl)-cyclohexanecarboxylic acid ethyl ester (1:5) (319 mg, 1.26 mmol) and N-bromosuccinimide (247 mg, 1.38 mmol) in N,N-dimethylformamide (1.6 ml) was stirred for 1 h at room temperature. The reaction mixture was partitioned between tert-butyl methyl ether (25 ml) and 0.1 M aqueous sodium hydroxide solution (25 ml). The layers were separated. The aqueous layer was extracted with two 25-ml portions of tert-butyl methyl ether. The combined organic layers were washed with two 25-ml portions of water, dried over anhydrous sodium sulfate and concentrated in vacuo to give the crude title compound (371 mg, 89%) as light yellow solid, which was used in the next step without further purification. MS m/e: 334 ([M+H]+)

Provenance & Evidence