organic synthesis and also ubiquitous as the Cp ligands in organometallic chemistry. As part of ongoing efforts to develop novel organic reactions that employ functionalized alkynes, a [3+2] cycloaddition of propargylic alcohols and ketene dithioacetals has been developed, which leads to fully substituted 2,5‐dialkylthio cyclopentadienes in good to excellent yields. In an unusual dethiolating Diels–Alder
环戊二烯是有机合成中有价值的中间体,并且在有机
金属
化学中也普遍用作Cp
配体。作为开发使用官能化
炔烃的新型有机反应的不断努力的一部分,已开发了[3 + 2]炔
丙醇和
乙烯酮二
硫缩醛的环加成反应,从而可以完全取代2,5-二烷
硫基
环戊二烯,并具有良好的收率。在不寻常的脱
硫Diels-Alder反应中,
环戊二烯进一步与马来
酰亚胺反应,得到了一系列新型的荧光
多环化合物。