(Arylsulfonyl)acetones and -acetonitriles: New Activated Methylenic Building Blocks for Synthesis of 1,2,3-Triazoles
作者:Nazariy Pokhodylo、Vasyl Matiychuk、Mykola Obushak
DOI:10.1055/s-0029-1216850
日期:2009.7
for 1,2,3-triazole synthesis in the Dimroth cyclization. It was shown, that sulfone reagents undergo base-catalyzed cyclization under mild conditions (at room temperature) to give 1,2,3-triazoles in moderate to excellent yields. This fact has confirmed the high nucleophilicity of sulfonylmethylenic compounds and allows new synthetic applications. azides - triazoles - sulfones - Dimroth reaction
在Dimroth环化反应中,β-酮砜和β-腈砜被用作合成1,2,3-三唑的基础。结果表明,砜试剂在温和的条件下(在室温下)进行碱催化的环化反应,以中等至极好的收率得到1,2,3-三唑。这一事实证实了磺酰基亚甲基化合物的高度亲核性,并允许新的合成应用。 叠氮化物-三唑-砜-Dimroth反应