Three‐Component Synthesis of 2‐Substituted Thiobenzoazoles Using Tetramethyl Thiuram Monosulfide (TMTM) as Thiocarbonyl Surrogate
作者:Xi Wang、Chun‐Yan Wu、Yue‐Sheng Li、Zhi‐Bing Dong
DOI:10.1002/ejoc.202001214
日期:2020.11.22
A metal‐free synthesis of 2‐benzyl/allyl‐substituted thiobenzoazoles was developed starting from tetramethyl thiuram monosulfide (TMTM) which served as thiocarbonyl surrogate. By using 2‐aminophenols (or 2‐aminothiophenols, or 1,2‐phenylenediamines) and TMTM as starting materials, 2‐mercaptobenzoazoles could be synthesized efficiently, and the subsequent C–S bond formation with allyl/benzyl halides
从用作硫代羰基替代物的四甲基秋兰姆单硫化物(TMTM)出发,开发了2-苄基/烯丙基取代的硫代苯并恶唑的无金属合成方法。通过使用2-氨基苯酚(或2-氨基硫酚或1,2-苯二胺)和TMTM作为起始原料,可以高效合成2-巯基苯并恶唑,随后与烯丙基/苄基卤化物的CS键形成最终产物( 2-烯丙基/苄基取代的硫代苯并唑),具有良好或优异的收率。