已经确定了几种噻唑杂环化合物的p K a 's,它们代表具有很高值的产物。由于它们的高碱性,有时这些化合物不仅可以充当亲核试剂,而且还可以充当强有机碱。4-取代-3-甲基-2-甲基亚氨基-Δ 4 -thiazolines图5a-d在回流的苯,得到相应的与溴乙酸乙酯反应Ñ烷基化盐8A-d ,同时从反应用2-溴苯乙酮制得的产品碱的存在是吡咯并噻嗪10b-d。
Mmm, a reaction sandwich…︁ Using an immunoassay‐based technique able to monitor any kind of cross‐coupling reaction, a systematic and rapid evaluation of a large panel of random reactions was carried out. This approach led to the discovery of two new copper‐promoted reactions: a desulfurization reaction of thioureas leading to isoureas and a cyclization reaction leading to thiazole derivatives from