p-Toluenesulfonic acid → HCID 71087221, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of ((S)-3-methyl-1-thiocarbamoyl-butyl)-carbamic acid tert-butyl ester (1.38 g, 6 mmol), 2-bromo-1,1-dimethoxyethane (CAN:7252-83-7, 1.14 g, 7 mmol) and p-toluene sulfonic acid (50 mg) in acetic acid (20 mL) was stirred at 120° C. for 4. After evaporation of solvents, the residue was diluted with ethyl acetate (20 mL) and water (20 mL). The aqueous phase was washed with ethyl acetate (3×20 mL) and lyophilized to give a brown solid (0.6 g, 63%); MS: m/e 171.1 [M+H+].

Provenance & Evidence