Potassium Carbonate → (4-Cyclopropyl-3-methoxy-phenyl)-(1-methyl-1H-spiro[chromeno[4,3-c]pyrazole-4,4'-piperidine]-1'-yl)methanone

Participants

Reaction Conditions

Reaction Steps

To a microwave vial was added (4-bromo-3-methoxyphenyl)(1-methyl-1H-spiro[chromeno[4,3-c]pyrazole-4,4′-piperidine]-1′-yl)methanone (70 mg, 0.15 mmol), cyclopropylboronic acid (26 mg, 0.30 mmol), Fibre cat (49 mg, 0.0075 mmol), DMF (0.7 mL), and K2CO3 (150 μL of 3.0 M, 0.45 mmol). The vial was purged with nitrogen and was heated at 120° C. for 2 hours. The reaction was filtered and purified by HPLC (20-99%) MeOH:H2O. ESI-MS m/z calc. 429.2, found 430.4 (M+1)+. Retention time: 2.95 minutes (4 min run).

Provenance & Evidence