Gas-phase cyclisation reactions of 1-(2-arylthiophenyl)alkaniminyl and 2-(aryliminomethyl)thiophenoxyl radicals
作者:Tim Creed、Rino Leardini、Hamish McNab、Daniele Nanni、Iain S. Nicolson、David Reed
DOI:10.1039/b009844m
日期:——
18–20 at 650 °C (10−2–10−3 Torr) gave products derived from the corresponding iminyl and thiophenoxyl radicals. In all cases, benz[d]isothiazoles (e.g., 26) are formed as major products viaSHi mechanisms though the yields are greatest with the iminyl precursors. Alternative pathways observed from the thiophenoxyls in specific cases include the formation of the anilinobenzothiophene 36 and of dibenzothiophene
闪蒸真空热解 (最有价值球员) 的 肟 醚 12-14和硫化物 在650°C(10 -2 -10 -3托)下18-20产生的产物衍生自相应的亚氨基和噻吩氧基。在所有情况下,苯并[ d ]异噻唑(例如,26)形成为主要产物通过小号ħ虽然产率是最大的与亚氨基前体我的机制。在特定情况下,从噻吩氧基观察到的其他途径包括苯并噻吩36和苯并噻吩的形成。二苯并噻吩 23,通过一个小号ħ分别我处理和spirodienyl重排。没有证据表明亚胺基和噻吩氧基具有明显的相互转化。