反应 #1350586

ord-9661301a5c1d4a79a1f6f2a60ed9e312

反应方程式

COC(=O)c1ccc2scnc2c1C
methyl 4-methylbenzothiazole-5-carboxylate
O=P(O)(O)O
phosphoric acid
Cc1c(C(=O)O)ccc2scnc12
4-Methylbenzothiazole-5-carboxylic Acid

反应条件

详细条件
See reaction.notes.procedure_details.

后处理

  1. 1
    温度heated
  2. 2
    温度at reflux for 2.5 h
  3. 3
    温度After cooling
  4. 4
    过滤The product was filtered off
  5. 5
    其他subsequently dried

实验过程

16.6 g of methyl 4-methylbenzothiazole-5-carboxylate (0.08 mol) were dissolved in 280 ml of 5% strength aqueous potassium hydroxide solution and heated at reflux for 2.5 h. After cooling, the mixture was acidified using phosphoric acid. The product was filtered off and subsequently dried.

来源

DOI: 10.6084/m9.figshare.5104873.v1专利: US06541423B1uspto-grants-2003_04