中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-硝基吡咯-2-羧酸 | 4-nitropyrrole-2-carboxylic acid | 5930-93-8 | C5H4N2O4 | 156.098 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1-甲基-4-硝基吡咯-2-腈 | 1-methyl-4-nitro-1H-pyrrole-2-carbonitrile | 89488-02-8 | C6H5N3O2 | 151.125 |
The 2-nitriles of pyrrole and 1-methylpyrrole have been prepared by the dehydration of the corresponding aldoximes. These compounds have been nitrated and the ratios of 4- and 5-nitro isomers have been determined. The 2-cyano group appears to be less strongly "meta"-directing (i.e. toward the 4-position) during nitration in the pyrrole series than in the benzene ring.