Triethylamine → HCID 178426904, compound

Participants

Reaction Steps

A mixture of 1H-spiro[chromeno[3,4-d]imidazole-4,4′-piperidine] (210 mg, 0.88 mmol), 4-isopropoxy-3-methyl-benzoic acid (170 mg, 0.89 mmol), triethylamine (370 μL, 2.6 mmol), and EDCI (170 mg, 0.89 mmol) in dichloromethane (5 mL) was stirred for 16 h. The reaction mixture was diluted with dichloromethane and was washed with 1 M HCl, saturated solution of NaHCO3, and brine. The organics were dried over sodium sulfate and evaporated to dryness. The crude product was purified by silica gel chromatography eluting with 0-100% methanol in dichloromethane to yield (4-isopropoxy-3-methylphenyl)(1H-spiro[chromeno[3,4-d]imidazole-4,4′-piperidine]-1′-yl)methanone (44 mg, 12%). ESI-MS m/z calc. 417.5, found 418.5 (M+1)+; Retention time: 1.44 minutes (3 min run).

Provenance & Evidence