反应详情

A 300-ml r.b. flask, equipped with a magnetic stirring bar was charged with 7.85 g sodium hydroxide (Fisher, 0.197 moles) in 75 ml of deionized water and then, to the stirred solution, 27.40 g of p-nitroPhenol (Aldrich, 98%, 0.197 moles) was added. The solution turned orange and a considerable amount of yellow solid was present. A solution of 20.04 g of terephthaloyl chloride (Aldrich, 97%, 0.0987 moles assuming 100% purity) in methylene chloride was dripped into the flask from a dropping funnel. The flask was stirred another 15 min and the mixture filtered through a Whatman's #1 filter Paper disk on a Buchner funnel. The filtrate was almost clear and the solid on the filter was washed with a few portions of water in the funnel and with two small portions of acetone. The solid was dried by briefly drawing air through it in a vacuum funnel and then, broken into finer pieces, in a 65° C. vacuum oven. The crude product weighed 36.1 g (theory, 40.2 g) and melted at 228°-243° C.

1. customflask, equipped with a magnetic stirring bar
2. filtrationthe mixture filtered through a Whatman's #1
3. filtrationfilter Paper disk on a Buchner funnel
4. washthe solid on the filter was washed with a few portions of water in the funnel and with two small portions of acetone
5. customThe solid was dried
6. custombroken into finer pieces, in a 65° C.