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A room‐temperature‐stable crystalline cyclic (alkyl)(amino)nitrenium cation 2 features cationic nitrogen atom with a smaller HOMO–LUMO gap compared to that of a 1,2,3‐triazolium 5 (an N‐heterocyclic nitrenium cation). The low‐lying LUMO of 2 results in an enhanced electrophilicity, which allowed for the formation of Lewis adducts with neutral Lewis bases, such as Me3P, nBu3P, and IiPr. The N‐based...
Stickstoff‐basierte Lewis‐Säuren D. W. Stephan et al. zeigen in ihrer Zuschrift auf S. 3380 ff., dass ein cyclisches (Alkyl)(amino)nitrenium mit kationischem Stickstoffatom eine verbesserte Elektrophilie aufweist.
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