7-Azabicyclo[2.2.1]heptadienes in electrophilic chalcogenation reactions
作者:A. Yu. Gavrilova、M. A. Nechaev、D. A. Aparshov、S. Yu. Arkhipenko、R. L. Antipin、O. B. Bondarenko、N. V. Zyk
DOI:10.1007/s11172-017-1765-0
日期:2017.3
Reactions of electrophilic chalcogenation (sulfenylation and selenenylation) of 7-azabicyclo[2.2.1]heptadiene derivatives with electron-withdrawing substituents at the nitrogen atom and the double bond were found to proceed trans-stereospecifically with the formation of 1,2-addition products, resulting from the exo-attack by the electrophile. In the case of 2-tosyl-7-azanorbornadiene, the reaction