反应详情

A mixture of 4 g of 8-benzyloxy-6-bromo-2,3-dimethylimidazo[1,2-a]pyridine, 0.4 g of palladium( acetate, 1.33 g of triphenylphosphine, 10 ml of triethylamine and 50 ml of ethanol is heated for 16 h) a carbon monoxide atmosphere in an autoclave (5 bar), the volatile portions are stripped off in vaco and the residue is chromatographed on silica gel (eluent: ethyl acetate). 2.4 g of the title compound melting point 140-1° C. (diethyl ether) are obtained.

1. customthe residue is chromatographed on silica gel (eluent: ethyl acetate)