Potassium Hydroxide → methyl N-[(2-chloro-5-ethynylphenyl)methyl]carbamate

Participants

Reaction Steps

To a solution of methyl N-[[2-chloro-5-[2-(trimethylsilyl)ethynyl]phenyl]methyl]-carbamate (i.e. the product of Step C) (1.37 g, 4.6 mmol) in methanol (28 mL) was added potassium hydroxide (2.3 mL, 1M in methanol). The reaction mixture was stirred at room temperature for 18 h, and then concentrated. The resulting residue was partitioned between ethyl acetate and water, the organic layer was separated, washed with water, dried over magnesium sulfate, filtered and concentrated under reduced pressure to provide the title compound as a brown oil (0.90 g).

Provenance & Evidence