(3+3)-Annulation of Donor-Acceptor Cyclopropanes with Diaziridines
作者:Alexey O. Chagarovskiy、Vladimir S. Vasin、Vladimir V. Kuznetsov、Olga A. Ivanova、Victor B. Rybakov、Alexey N. Shumsky、Nina N. Makhova、Igor V. Trushkov
DOI:10.1002/anie.201805258
日期:2018.8.6
The first example of (3+3)‐annulation of two different three‐membered rings is reported herein. Donor‐acceptor cyclopropanes in reaction with diaziridines were found to afford perhydropyridazine derivatives in high yields and diastereoselectivity under mild Lewis acid catalysis. The disclosed reaction is applicable for the broad substrate scope and exhibits an excellent functional group tolerance.
作者:V. V. Kuznetsov、N. N. Makhova、L. I. Khmel'nitskii
DOI:10.1007/bf02495943
日期:1997.7
In the synthesis of diaziridines from amines, carbonyl compounds, and NaOCl in water, the yields of 1,2-dialkyldiaziridines and of 1,2,3-trisubstituted diaziridines prepared from amines with electron-withdrawing substituents in the side chain are less sensitive to changes in pH than the yields of 1,2,3-trialkyldiaziridines with simple alkyl substituents. The formation of 1,5-diazabicyclo[3.1.0]hexanes
Ring transformation of 1,5-diazabicyclo[3.1.0]hexanes under the action of arylketenes
作者:Alexander V. Shevtsov、Vladimir V. Kuznetsov、Alexander A. Kislukhin、Vera Yu. Petukhova、Yu. A. Strelenko、Nina N. Makhova、Konstantin A. Lyssenko
DOI:10.1002/jhet.5570430411
日期:2006.7
instead of the expected bicyclic systems 1,5-diazabicyclo[3.2.1]octan-6-one 9 and 3-aryl-1,5-diazabicyclo[3.3.0]octane-2-one 10. The synthesis of two representatives of bicycles 10 (10a,b) proceeded in the reaction of unsubstituted 1,5-diazabicycle[3.1.0]hexane 8a, accordingly, with diphenylketene 1a in benzene at 20 °C and with 4-chlorophenylketene 1b in toluene at 60-110 °C. Mechanisms of the studied transformations