HRID1990086
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
Combine 5-amino-4-cyano-3-(4-iodo-phenyl)-thiophene-2-carboxylic acid ethyl ester (0.829 mmol) in dioxane and add 2-(methylthio)phenylboronic acid, tetrakis(triphenylphosphine)palladium (0), and 1.4 ml of 2M sodium carbonate solution and heat to reflux. After 3 hours, purification by radial chromatography (6000 micron Si plate) eluting with 10-20% ethylacetate/methylene chloride provides the title compound: 1H NMR (400 MHz, CDCl3) δ 7.49-7.19 (m, 8H), 5.26 (s, 2H), 4.17 (q, 2H, J=7.2 Hz), 2.38 (s, 3H), 1.18 (t, 3H, J=7.0 Hz), MS found (M+1) 395.1.
WORKUP
后处理
- temperatureheat to reflux
- custompurification by radial chromatography (6000 micron Si plate)
- washeluting with 10-20% ethylacetate/methylene chloride