Theoretical study of the mechanism of formation of 4-aminoisoxazoles. 1. Structure of 2-cyano-2-[(2-oxo-2-phenylethoxy)imino]-N-phenylacetamide in the crystal and solution
摘要:
In a study of the mechanism for formation of 4-aminoisoxazoles, we carried out a conformational analysis of substituted oximinonitriles using DFT, HF, and MP2 methods. The structure of 2-cyano-2-[(2-oxo-2-phenylethoxy)imino]-N-phenylacetamide in the crystal is in good agreement with the conformation in solution determined using the B3LYP/6-311++G(d,p) density functional method.
Synthesis of 3,5-disubstituted 4-aminoisoxazoles by cyclization of O-(β-oxoalkyl)-substituted α-hydroxyimino nitriles
作者:V. P. Kislyi、E. B. Danilova、V. V. Semenov
DOI:10.1007/s11172-005-0379-0
日期:2005.5
4-Amino-5-benzoyl(acetyl)isoxazole-3-carboxamides were prepared by cyclization of α-hydroxyimino nitriles O-alkylated with bromoacetophenones (bromoacetone). The purity of the target 4-aminoisoxazoles can be substantially increased by treating O-alkylated oximes with LiClO4 before cyclization.
Theoretical study of the mechanism of formation of 4-aminoisoxazoles. 1. Structure of 2-cyano-2-[(2-oxo-2-phenylethoxy)imino]-N-phenylacetamide in the crystal and solution
作者:V. P. Kislyi、E. B. Danilova
DOI:10.1007/s10593-013-1341-y
日期:2013.10
In a study of the mechanism for formation of 4-aminoisoxazoles, we carried out a conformational analysis of substituted oximinonitriles using DFT, HF, and MP2 methods. The structure of 2-cyano-2-[(2-oxo-2-phenylethoxy)imino]-N-phenylacetamide in the crystal is in good agreement with the conformation in solution determined using the B3LYP/6-311++G(d,p) density functional method.