Study of the Addition Mechanism of 1<i>H</i>-Indazole and Its 4-, 5-, 6-, and 7-Nitro Derivatives to Formaldehyde in Aqueous Hydrochloric Acid Solutions
作者:Ibon Alkorta、Rosa M. Claramunt、José Elguero、Enrique Gutiérrez-Puebla、M. Ángeles Monge、Felipe Reviriego、Christian Roussel
DOI:10.1021/acs.joc.2c00154
日期:2022.5.6
NH-indazoles with formaldehyde in aqueous hydrochloric acid has been experimentally studied by solution and solid-state nuclear magneticresonance (NMR) and crystallography. The mechanism of the formation of N1-CH2OH derivatives was determined. For the first time, 2-substituted derivatives have been characterized by multinuclear NMR. Theoretically, calculations with gauge-invariant atomic orbitals (GIAOs)