反应详情

A mixture of 10 parts of methyl 1-(2,3-dihydro-3-methyl-1H-inden-1-yl)-2-mercapto-1H-imidazole-5-carboxylate and 120 parts of a nitric acid solution 30% is stirred for 30 minutes at room temperature (intense reaction). The reaction mixture is poured into crushed ice and treated with a sodium hydroxide solution. The product is extracted with trichloromethane. The extract is washed with water, dried, filtered and evaporated. The residue is converted into the nitrate salt in 2-propanone and 2,2'-oxybispropane. The salt is filtered off and dried, yielding 6.8 parts (62.6%) of methyl 1-(2,3-dihydro-3-methyl-1H-inden-1-yl)-1H-imidazole-5-carboxylate mononitrate; mp. 140.3° C. (compound 2.35).

1. custom(intense reaction)
2. additionThe reaction mixture is poured
3. custominto crushed ice
4. extractionThe product is extracted with trichloromethane
5. washThe extract is washed with water
6. customdried
7. filtrationfiltered
8. customevaporated
9. filtrationThe salt is filtered off
10. customdried