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
To a flame dried round bottom flask equipped with a nitrogen inlet and a condenser was introduced 1.3 gm. (7.59 mmol) 2-phenyl-3-hydroxypyridine, 3.25 gm. 2.26 ml (18.96 mmol) benzylbromide. The contents were dissolved in 30 ml of acetonitrile and the reaction mixture was heated under reflux for a period of 18 hours. The mixture was allowed to cool to room temperature and evaporated in vacuo. The residue was taken up in chloroform followed by treatment with ether to afford a solid precipitate. Upon filtration there was obtained 2.09 gm (81%) of 1-phenylmethyl-2-phenyl-3-hydroxypyridinium bromide. 1H NMR (CDCl3, 400 MHz) δ 8.70 (d, 1H), 8.25 (d, 1H), 7.50 (m, 2H), 7.40 (m, 2H), 7.30–7.20 (m, 5H), 6.90 (d, 2H), 5.60 (s, 2H) ppm. Mass spectrum APCI m/z 262.
WORKUP
后处理
- customTo a flame dried round bottom flask
- customequipped with a nitrogen inlet and a condenser
- additionwas introduced 1.3 gm
- temperaturethe reaction mixture was heated
- temperatureunder reflux for a period of 18 hours
- customevaporated in vacuo
- customto afford a solid precipitate
- filtrationUpon filtration there