作者:Yiding Chen、Michael C. Willis
DOI:10.1021/acs.orglett.5b02347
日期:2015.10.2
The combination of arynes, generated using fluoride from the corresponding 2-(trimethylsilyl)aryl triflates, and 3-hydroxy-4-aminothiadiazoles leads to the selective formation of 3-amino-substituted benzo[d]isothiazoles. Variation of the substitution pattern of the aryne precursor, and of the thiadiazole, is possible, with the target heterocycles being obtained in good to excellent yields. In all cases
使用由相应的2-(三甲基甲硅烷基)芳基三氟甲磺酸酯氟化物生成的芳烃与3-羟基-4-氨基噻二唑的组合导致选择性地形成3-氨基取代的苯并[ d ]异噻唑。可以改变芳烃前体和噻二唑的取代方式,并以高至优异的产率获得目标杂环。在所有情况下,使用3-羟基-4-氨基噻二唑都会在产物杂环中引入氨基取代基。