181265-77-0Relevant articles and documents
Silver(I)- and Base-Mediated formal [4+3] Cycloaddition of in Situ generated 1,2-Diaza-1,3-dienes with C,N-Cyclic Azomethine Imines: An Efficient Protocol for the Synthesis of Tetrazepine Derivatives
Li, Zefei,Li, Shuaikang,Kan, Tianjiao,Wang, Xinyue,Xin, Xin,Hou, Yunlei,Gong, Ping
, p. 2626 - 2631 (2020)
A silver(I)- and base-mediated formal [4+3] cycloaddition reaction of in situ generated 1,2-diaza-1,3-dienes with in situ formed C,N-cyclic azomethine imines has been developed. This protocol provided an efficient method for the synthesis of biologically important 1,2,4,5-tetrazepine derivatives with a wild substrate scope and excellent functional group tolerance in moderate to excellent yields. (Figure presented.).
Cycloaddition reactions of nitrosoalkenes, azoalkenes and nitrile oxides mediated by hydrotalcite
Lemos, Americo,Lourenco, Joao P.
experimental part, p. 170 - 182 (2010/08/20)
Mg:Al 3:1 hydrotalcite (Ht), used in catalytic quantities, promotes the generation of nitrosoalkenes, azoalkenes and nitrile oxides. These can be intercepted in situ by heterocycles and olefins in [4+2] and [3+2] cycloaddition reactions, producing dihydro