The reactivity of propellane C−C bonds towards cerium(IV) ammonium nitrate (CAN) was studied utilizing photochemical initiation in acetonitrile. Synthetic as well as computational (B3LYP/6-311+G** and MP2/6-31G*) data strongly suggest that the activation of the C−C bonds in cyclopropane and cyclobutane derivatives involves NO3 radical attack on the hydrocarbon ring and does not proceed through single
作者:Andrey A. Fokin、Pavel A. Gunchenko、Alexander I. Yaroshinsky、Alexander G. Yurchenko、Pavel A. Krasutsky
DOI:10.1016/0040-4039(95)00763-3
日期:1995.6
Transformations of 3,6-dehydrohomoadamantane (1) and 1,3-dehydroadamantane (2) with nitronium reagents were studied. In the case of compound 1 an oxidative route of reaction is realized resulting in addition of two nucleophiles from reagent or solvent to the strained CC bond. Contrary to this, compound 2 in the same conditions undergoes an electrophilic addition reaction.
NO2+-containing reagents in the electrophilic and oxidative addition to propellanic C-C bond
作者:Andrey A. Fokin、Pavel A. Gunchenko、Natalya I. Kulik、Svetlana V. Iksanova、Pavel A. Krasutsky、Igor' V. Gogoman、Alexander G. Yurchenko
DOI:10.1016/0040-4020(96)00215-3
日期:1996.4
5-Dehydrobicyclo[3.3.1]nonane (3) like2 formed 1, 5-disubstituted bicyclo[3.3.1]nonanes in the course of oxidativeaddition. The scheme of backside oxidativeaddition to the propellanic C-C bond is proposed. MNDO-calculations of propellanes(1)–(3) were carried out and the protonation as a model process of electrophilicaddition was studied using energy/C-C…H+ distance relationships. It was concluded that the nonelectrophilic