An Easy Access to 4,5-Disubstituted Thiazoles via Base-Induced Click Reaction of Active Methylene Isocyanides with Methyl Dithiocarboxylates
作者:Marilinganadoddi Sadashiva、Kanchugarakoppal Rangappa、Gejjalagere Lingaraju、Toreshettahally Swaroop、Ajjampura Vinayaka、Kothanahally Sharath Kumar
DOI:10.1055/s-0031-1290762
日期:2012.5
5-diarylthiazoles. An efficient synthesis of 4,5-disubstituted thiazoles via base-induced cyclization of active methylene isocyanides such as tosylmethyl isocyanide, ethyl isocyanoacetate, and arylmethyl isocyanides with methyl arene- and hetarenecarbodithioates is reported. This synthesis could be a new click chemistry reaction, since it is simple, rapid, and often avoids purification steps. In addition
摘要 据报道,通过碱诱导的活性亚甲基异氰酸酯(如甲苯磺酰基甲基异氰化物,乙基异氰基乙酸盐和芳基甲基异氰化物)与甲基芳烃和戊碳二硫代硫酸盐的有效环化反应,可以有效合成4,5-二取代的噻唑。该合成简单,快速,并且通常避免纯化步骤,因此可能是新的点击化学反应。此外,这种方法使我们可以清晰,通用地合成新型的4,5-二芳基噻唑。 据报道,通过碱诱导的活性亚甲基异氰酸酯(如甲苯磺酰基甲基异氰化物,乙基异氰基乙酸盐和芳基甲基异氰化物)与甲基芳烃和戊碳二硫代硫酸盐的有效环化反应,可以有效合成4,5-二取代的噻唑。该合成简单,快速,并且通常避免纯化步骤,因此可能是新的点击化学反应。此外,这种方法使我们可以清晰,通用地合成新型的4,5-二芳基噻唑。