Sodium hydride → HCID 69001680, compound

Participants

Reaction Steps

To a 25 mL vial which contained a suspension of NaH (60% in mineral oil, 60 mg, 1.5 mmol) in DMF (10 mL) was added the product from step 1 (241 mg, 1 mmol) at 0° C. The mixture was allowed to warm to rt and stir at rt for 30 min then cooled to 0° C. To this reaction mixture was added (R)-2-(toluene-4-sulfonyloxymethyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (355 mg, 1 mmol) at 0° C. The resulting mixture was allowed warm to rt and stir at rt for 30 min and then was heated to 95° C. and stirred at 95° C. for 16 h. After cooling to rt, the mixture was poured onto 200 mL ice-water solution and this solution was allowed to stir at 0° C. for 30 min. The solid which formed was filtered out, dried through air to afford the title product (320 mg, 70%); 1H NMR (400 MHz, CDCl3); δ 1.47 (s, 9H), 1.81-2.11 (m, 4H), 3.32-3.47 (m, 2H), 3.70-4.20 (m, 3H), 4.37 (s, 2H), 6.84-6.97 (m, 4H), 7.33 (t J=7.6, 1H), 7.45 (t, J=7.6, 1H), 7.78 (d, J=8.0, 1H), 7.98 (d, J=8.4, 1H).

Provenance & Evidence