NN bridged pyrazoles from nitrogen‐centered radicals: A comparative study of spin densities, molecular structures, and reactivities
Zhiwei Zeng,
Wei Huang,
Yuji Liu
et al.
Abstract:Nitrogen‐centered radicals are versatile synthetic intermediates with the ability to undergo diverse reactions. However, the utility of these reactive species in NN coupling reactions, especially in nitrogen‐rich heterocycles, remains a significant challenge due to the high electronegativity of the nitrogen atoms and the poor molecular stability of high‐nitrogen compounds. In this work, the possibility of NH bond cleavage in different functionalized pyrazoles to produce corresponding nitrogen‐centered radica… Show more
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