中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3,5-二甲酯基-1,4-二氢-2,6-二甲基-1,4-二苯基吡啶 | dimethyl 2,6-dimethyl-1,4-diphenyl-1,4-dihydropyridine-3,5-dicarboxylate | 83300-85-0 | C23H23NO4 | 377.44 |
1,4-二氢-2,6-二甲基-1,4-二苯基-3,5-吡啶二羧酸二乙酯 | 2,6-dimethyl-1,4-diphenyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid | 83300-97-4 | C21H19NO4 | 349.386 |
2,6-二甲基-4-苯基-1,4-二氢吡啶-3,5-二羧酸二乙酯 | Diethyl 2,6-dimethyl-4-phenyl-1,4-dihydropyridine-3,5-dicarboxylate | 1165-06-6 | C19H23NO4 | 329.396 |
Hantzsch synthesis of N-substituted-1,4-dihydropyridines (1,4-DHP) was carried out using an environmentally benign procedure. Neat reactants were subjected to microwave irradiation (MWI) to give the required products in excellent yield. Appreciable results were not obtained when conventional synthesis using neat reactants was carried out. The good yield and rate enhancement observed in the case of microwave irradiation is attributed to the uniform heating effect of microwaves.Key words: 1,4-dihydropyridines (1,4-DHP), microwave irradiation (MWI), neat reaction, solid support.