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
In 3 ml of acetic acid, 100 mg of TPC-A was dissolved and a solution of copper nitrate (40 mg) in 3 ml of acetic acid was added under stirring. When the color change of the reaction solution from blue to green took place under the continuation of stirring, water was added to cease the reaction and the product was extracted with ethyl acetate. After washing the extract with saturated sodium chloride solution and drying the extract over anhydrous magnesium sulfate, the extract was subjected to distillation to remove solvent, in vacuo and the product was recrystallized from methanol to obtain nitro compound of TPC-A at α-position of phenol thereof (108 mg) as yellow needle crystal having m.p. of 244°-250° C. (decomp) and [α]D22 of -232° (CHCl3).
WORKUP
后处理
- stirringof stirring
- customthe reaction
- extractionthe product was extracted with ethyl acetate
- washAfter washing the
- extractionextract with saturated sodium chloride solution
- customdrying the
- extractionextract over anhydrous magnesium sulfate
- distillationthe extract was subjected to distillation
- customto remove solvent
- customin vacuo and the product was recrystallized from methanol