| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | 1-(azidomethyl)-2-(phenylethynyl)benzene | 947395-59-7 | C15H11N3 | 233.272 |
A copper-catalyzed construction of isothiochromenes and benzo[b]thiophenes via annulation with 1,1,1,3,3,3-hexamethyldisilathiane as a sulfur source is described. In the isothiochromene synthesis, the use of the disilathiane as a sulfur source successfully controls the regioselectivity of cyclization to afford the isothiochromene as the sole product. The present strategy can be applied to the synthesis of 2-aryl/2-alkylbenzo[b]thiophenes.