Propionitrile → HCID 66771118, compound

Participants

Reaction Conditions

Reaction Steps

Under an atmosphere of argon, (2S,4S)-1-tert-butyl 2-methyl 4-(3-nitrophenylsulfonyloxy)pyrrolidine-1,2-dicarboxylate (8.5 g, 19.7 mmol, Eq: 1.00) was combined with propionitrile (82.0 ml) to give a light brown solution. Then 2-chlorobenzenethiol (4.28 g, 3.38 ml, 29.6 mmol, Eq: 1.50) and triethylamine (4.00 g, 5.5 ml, 39.5 mmol, Eq: 2.00) were added dropwise. The reaction was stirred overnight at reflux (100° C.). The reaction was cooled to room temperature, and poured in 50 ml Na2CO3 solution (10%), and extracted with 2×100 ml ethyl acetate. The organic layers were washed with 50 ml HCl 0.1M and 50 ml satd. NaCl solution. The organic layer was stirred over Na2SO4, filtered and concentrated in vacuo. The crude material was purified by flash chromatography (70 g column, from 100% to 80% heptane in ethyl acetate). The title compound was obtained as a yellow oil (5.7 g, 77.6%, MS (m/e)=372.1 [M+H+]).

Provenance & Evidence