反应详情

温度

0 °C

A stirred solution of (1-amino-cyclopentyl)-acetic acid hydrochloride (363 mg, 2.02 mmol) in a 1:1 mixture of anhydrous methanol/benzene (20 mL) cooled to 0° C. under a nitrogen environment was treated dropwise via syringe with a 2.0 M solution of trimethylsilyldiazomethane in toluene (2.0 mL, 4.0 mmol). The reaction mixture was allowed to warm to 25° C., stirred for 1 h, and concentrated in vacuo to give (1-amino-cyclopentyl)-acetic acid methyl ester (311 mg, 98%) as a colorless oil. LC-MS (ESI) calculated for C8H15FNO2: 157.2, found 158.2 [M+H+].

1. temperatureto warm to 25° C.
2. concentrationconcentrated in vacuo