Chlorosuccinimide → HCID 22182413, compound

Participants

Reaction Steps

A mixture of t-butyl 4-(thieno[2,3-d]pyrimidin-4-ylamino)piperidine-1-carboxylate (1.00 g, 3.00 mmol) and N-chlorosuccinimide (0.39 g, 3.00 mmol) were heated in 50 mL of acetic acid for 3 h. After cooling to room temperature acetic acid was removed under reduced pressure and the remaining residue was partition in 1 M NaOH and DCM. The DCM layer was dried over Na2SO4 and evaporated under reduced pressure. The crude product was purified by silica chromatography in 5% MeOH-DCM to collect 0.78 g of product (71% yield). 1H NMR (400 MHz, CDCl3): δ 8.45 (s, 1H), 7.01 (s, 1H), 4.94 (d, 1H), 4.32 (m, 1H), 4.15 (m, 2H), 2.94 (m, 2H), 2.11 (m, 2H), 1.48 (s, 9H), 1.44 (m, 2H); MS (ESI) m/z: Calculated for C16H21ClN4O2S, 368.11; Observed: 368.8 (M++1).

Provenance & Evidence