反应 #1678

ord-10c1b8c1d0dd44818ead6ca91a1dbfb1

反应方程式

O=C(CBr)c1ccc(Cl)cc1
2-bromo-p-chloroacetophenone
COC(=S)NN
methoxythiocarbonylhydrazine
O=C1NN=C(c2ccc(Cl)cc2)CS1
5-(4-chlorophenyl)-3H,6H-1,3,4-thiadiazin-2-one
收率 48.4%

反应条件

详细条件
See reaction.notes.procedure_details.

后处理

  1. 1
    温度was refluxed overnight
  2. 2
    温度cooled
  3. 3
    过滤filtered
  4. 4
    洗涤The light yellow solid was washed with hexane
  5. 5
    其他dried

实验过程

A mixture of 2-bromo-p-chloroacetophenone (9.16 g), methoxythiocarbonylhydrazine (13.0 g) and acetonitrile (75 ml) was refluxed overnight and then cooled and filtered. The light yellow solid was washed with hexane and dried yielding 5-(4-chlorophenyl)-3H,6H-1,3,4-thiadiazin-2-one (4.3 g).

来源

DOI: 10.6084/m9.figshare.5104873.v1专利: US05726176uspto-grants-1998_03