作者:MaroŠ Bella、Viktor Milata
DOI:10.1002/jhet.5570450220
日期:2008.3
4-Nitrobenzoselenadiazole was methylated with dimethylsulphate to give corresponding 1-N-methyl-4-nitrobenzoselenadiazolium methylsulphate which after alkaline ring-opening afforded 1-N-methyl-3-nitro-1,2-phenylenediamine in 90% yield. This compound was also prepared from 3-nitro-1,2-phenylenediamine by monomethylation through tosylation, methylation and detosylation and was confirmed and characterised
将4-硝基苯并硒二唑用硫酸二甲酯甲基化,得到相应的1 - N-甲基-4-硝基苯并硒二氮杂甲基硫酸盐,其在碱性开环后以90%的收率得到1 - N-甲基-3-硝基-1,2-苯二胺。该化合物也是由3-硝基-1,2-苯二胺通过甲苯磺酸化,甲基化和去甲苯基化的单甲基化反应制得的,证实并表征为1-甲基-4-硝基苯并咪唑。5-硝基苯并硒二唑的甲基化和随后的碱性开环导致两种甲基化产物的混合物不可分离。