反应详情

A suspension of 22 g. of the silver catalyst prepared above, 148 ml. of acetonitrile, and 32 ml. of water was added over a 30 minute period to 2.0 g. of 5,8-dimethoxyquinoxaline. The reaction was stirred for two hours at room temperature. The catalyst was filtered off and washed with methylene chloride. Water was added to the filtrate and the filtrate was then extracted with the methylene chloride used to wash the catalyst. The methylene chloride was dried over sodium sulfate and evaporated to give the title compound as a brown powder which was used without further purification.

1. additionA suspension of 22 g
2. filtrationThe catalyst was filtered off
3. washwashed with methylene chloride
4. additionWater was added to the filtrate
5. extractionthe filtrate was then extracted with the methylene chloride
6. washto wash the catalyst
7. dry with materialThe methylene chloride was dried over sodium sulfate
8. customevaporated