New aspects of nitrosation of arylcyclopropanes: nitrosation of phenylcyclopropanes with bulky alkyl substituents in the small ring
作者:O. B. Bondarenko、A. Yu. Gavrilova、L. G. Saginova、N. V. Zyk、N. S. Zefirov
DOI:10.1007/s10593-009-0184-z
日期:2008.10
It has been shown for the first time that nitrosation of phenylcyclopropanes with bulky alkyl substituents in the small ring proceeds predominantly with attack of the nitrosonium cation on the benzyl carbon atom of the cyclopropane ring with intermediate formation of an alkyl carbocation. In addition to isoxazolines, 1,2-oxazines and Delta(1)-pyrroline N-oxide are formed, formation of the latter is preceded by skeletal rearrangement.
Study of the Features of the Reaction of Arylcyclopropanes with Nitrozonium Ethyl Sulfate or Nitrozonium Tetrafluoroborate
作者:A. Yu. Gavrilova、O. B. Bondarenko、V. N. Tikhanushkina、T. A. Solodovnikova、N. V. Zyk
DOI:10.1134/s107042802005005x
日期:2020.5
AbstractThe reactions of diaryl-, aryl-, and alkyl–arylcyclopropanes with ethyl nitrite in the presence of sulfur trioxide and sulfur trioxide dioxane complex, as well as the reactions of 1-alkyl-2-arylcyclopropanes with NOBF4 were studied. It was found that the attack of the nitrosonium cation, accompanied by the formation of a benzyl carbocation, leads to the formation of isoxazolines. The introduction