HRID329846
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
A mixture of 2,3-dichlorobenzaldehyde, 2-(4-benzhydryl-1-piperazinyl)ethyl acetoacetate and ethyl 3-aminocrotonate was worked up in isopropyl alcohol in the same manner as Example 1 to give 2-(4-benzhydryl-1-piperazinyl)ethyl ethyl 4-(2,3-dichlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate as a light yellow powder, m.p. 87°-89° C. (sintering). Yield 30.7%. IR(Nujol)cm-1 : 3335, 1695, 1680. NMR(CDCl3) δ: 1.15(3H, t,J=7,--CH2CH3), 3.25(6H,s, ##STR18## 4.16(1H,s,>N--CH<), 5.41(1H,s,C(4) --H), 5.96(1H,s,NH).