反应详情

5-Hydroxy-6-isoquinolinecarboxylic acid methyl ester as reported by Dyke, S. F. et al., in Tetrahedron 1973, 29(6), 857-62, is reacted with excess ammonia in a steel bomb for 12-18 hr. The excess ammonia is allowed to evaporate and the residue is crystallized from a suitable solvent mix such as ethyl acetate-toluene to give the title compound.

1. customto evaporate
2. customthe residue is crystallized from a suitable solvent
3. additionmix such as ethyl acetate-toluene