Preparation of Acidic 5-Hydroxy-1,2,3-triazoles via the Cycloaddition of Aryl Azides with β-Ketoesters
作者:Roberta Pacifico、Dario Destro、Malachi W. Gillick-Healy、Brian G. Kelly、Mauro F. A. Adamo
DOI:10.1021/acs.joc.1c00778
日期:2021.9.3
Herein, a high-yielding cycloaddition reaction of β-ketoesters and azides to provide 1,2,3-triazoles is described. The reactions employing 2-unsubstituted β-ketoesters were found to provide 5-methyl-1,2,3-triazoles, whereas 2-alkyl-substituted β-ketoesters provided 5-hydroxy-1,2,3-triazoles (shown to be relatively acidic) in high yields and as single regioisomers. Several novel compounds were reported
本文描述了 β-酮酯和叠氮化物的高产环加成反应以提供 1,2,3-三唑。发现使用 2-未取代 β-酮酯的反应提供 5-甲基-1,2,3-三唑,而 2-烷基取代的 β-酮酯提供 5-羟基-1,2,3-三唑(显示为相对酸性)以高产率和作为单一区域异构体。报道并表征了几种新化合物,包括可能与异羟肟酸生物等排的长链 5-羟基-1,2,3-三唑。