480453-25-6Relevant articles and documents
Eosin Y- and Copper-Catalyzed Dark Reaction to Construct Ene-γ-Lactams
Lei, Wen-Long,Feng, Kai-Wen,Wang, Tao,Wu, Li-Zhu,Liu, Qiang
, p. 7220 - 7224 (2018)
Eosin Y, a common organo-photocatalyst in visible-light photoredox processes, was found to show excellent catalytic activities for thermal redox reactions under a catalytic amount of Cu(OAc)2. With this catalytic system, vinyl azides and ketene silyl acetals combine to form formal [3 + 2] cycloadducts by α-ester radical addition without light irradiation. This method provides a mild and straightforward paradigm to prepare important synthons of five-membered ene-γ-lactams and bridge ring lactams. It is the first example of an eosin Y-catalyzed redox reaction in the dark.
Competitive - and -Sigmatropic Rearrangements
Arnold, Richard T.,Kulenovic, Srdanka T.
, p. 891 - 894 (2007/10/02)
Several cases of the oxy-Cope rearrangement, which typically prefers the -sigmatropic route, are now known to occur in a -sigmatropic fashion.By contrast, the symmetry-allowed thermal rearrangement of carbanions (or their enol derivatives; e.g.,
