Reinvestigation of the Reaction of 3-Hydroxy-2-methyl-1-aryl-1-propanones and Related Compounds with Hydrazine and Carboxylic Acids
作者:Giorgio Cignarella、Daniela Barlocco、Maria Michela Curzu、Gérard Aimé Pinna
DOI:10.1055/s-1989-27242
日期:——
The reaction between the title compounds and hydrazine hydrate in an appropriate carboxylic acid gave 1-acyl/aroyl-3-aryl-4-methyl-4,5-dihydropyrazoles 9, instead of 2,5,6-trisubstituted 6,7-dihydro-1,3,4-oxadiazepines as previously reported. Evidence is presented for the attribution of the correct structure and for the reaction mechanisms involved.
标题化合物与水合肼在适当的羧酸中发生反应,生成了 1-酰基/芳酰基-3-芳基-4-甲基-4,5-二氢吡唑 9,而不是以前报告的 2,5,6-三取代的 6,7-二氢-1,3,4-恶二氮杂卓。文中提出了正确结构的归属和相关反应机制的证据。