New methods of preparation of nitrile oxides and the corresponding disubstituted furoxans by interaction of N2O4 with salts of substituted dinitromethanes
作者:N. N. Makhova、I. V. Ovchinnikov、V. G. Dubonos、Yu. A. Strelenko、L. I. Khmel'nitsky
DOI:10.1007/bf00699994
日期:1993.1
A newmethod of generation of nitrile oxides through interaction of N2O4 with salts of substituted dinitromethanes (1) has been worked out. It has been shown by1H,13C,14N NMR spectroscopy that this reaction proceeds via dinitronitrosomethyl intermediates (one of these has been isolated), and that the reaction is feasible only for substituents capable of conjugation with the nitrile oxide fragment.