2-(1-苄基-1 H –1,2,3-三唑-4-基)-3-甲基硫烷基-5-氧代-5-取代的戊-2-烯腈通过以良好产率得到缩合的(1-苄基-1 H -1,2,3-三唑-4-基)乙腈 与各种α-氧杂环丁烯二硫缩醛 在氢化钠存在下。中间体在PTSA的存在下进行酸诱导的环化反应,得到相应的苯并三唑产量中等。J.杂环化学,(2009)。
Junjappa-Ila annulation: α-Oxoketene dithioacetal mediated synthesis of substituted benzotriazoles
作者:Nitinkumar S. Shetty、Ravi S. Lamani、Shridhar I. Panchamukhi、Imtiyaz Ahmed M. Khazi
DOI:10.1002/jhet.85
日期:2009.7
2-(1-Benzyl-1H–1,2,3-triazole-4-yl)-3-methylsulfanyl-5-oxo-5-substituted-pent-2-enenitrile were obtained in good yields by condensation of (1-benzyl-1H-1,2,3-triazole-4-yl)acetonitrile with various α-oxoketenedithioacetals in the presence of sodium hydride. The intermediates underwent facile acid-induced cyclization in the presence of PTSA to afford the corresponding benzotriazoles in moderate yields. J. Heterocyclic
2-(1-苄基-1 H –1,2,3-三唑-4-基)-3-甲基硫烷基-5-氧代-5-取代的戊-2-烯腈通过以良好产率得到缩合的(1-苄基-1 H -1,2,3-三唑-4-基)乙腈 与各种α-氧杂环丁烯二硫缩醛 在氢化钠存在下。中间体在PTSA的存在下进行酸诱导的环化反应,得到相应的苯并三唑产量中等。J.杂环化学,(2009)。