中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1,3-丁二烯,1,1-二溴-3,4,4-三氯-2-硝基- | 2-nitro-1,1-dibromotrichloro-1,3-butadiene | 108546-14-1 | C4Br2Cl3NO2 | 360.217 |
The reaction of mercaptoacetic acid esters with pentachloro-2-nitro-1,3-butadiene (
The regioselective ipso-formylation of electron-rich, 3,4-push-pull-substituted 2-chlorothiophenes under Vilsmeier-Haack conditions was performed in good yields. The synthetic scope of this new reaction was explored using various halothiophenes, chloroanilines, and 1-methyl-3-chloroindole. In comparison with their structural C-H analogs the chlorinated thiophenes, anilines, and the indole proved to be less reactive toward electrophilic attack by chloromethyleniminium salts.