HRID1973112
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
27.9 g. of 4,6-dichloro-2-methyl-5-nitropyridine-3-carboxylic acid, ethyl ester (0.1 Mol.) are dissolved in about 100 ml. of methanol. At 50°, 9.2 g. of methylhydrazine are dropped in and the mixture is stirred for 30 minutes. On cooling, 4-chloro-6-(1-methyl)hydrazino-2-methyl-5-nitropyridine-3-carboxylic acid, ethyl ester precipitates, yield: 18 g. (62.2%), m.p. 159°-161° (methanol).
WORKUP
后处理
- customAt 50°
- temperatureOn cooling
- custom4-chloro-6-(1-methyl)hydrazino-2-methyl-5-nitropyridine-3-carboxylic acid, ethyl ester precipitates