Cesium carbonate → 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A mixture of 2-bromo-5-methylbenzoic acid (2.0 g, 9.30 mmol), 1,2,3-triazole (1.08 mL, 18.6 mmol), (1S,2S)—N1,N2-dimethylcyclohexane-1,2-diamine (2.23 mL, 13.95 mmol), Cs2CO3 (4.55 g, 13.95 mmol) and CuI (124 mg, 0.65 mmol) in DMF (12 mL) was degassed and heated at 120° C. for 1 h in a microwave reactor. The reaction was cooled to rt, diluted with MeOH, and acidified with AcOH to pH 4-5. The solvent was removed in vacuo to obtain the crude which was purified by silica gel chromatography (0˜100% DCM/EtOAc) to yield the title compound as a yellow oil (1.5 g, 61%). MS (ESI) 204 (M+H).

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