Kemmochi, Marin; Miyamoto, Yusuke; Sumida, Yuto; Ohmiya, Hirohisa published the article 《Direct Photoexcitation of Borate Enabling Minisci Reaction》. Keywords: borate enabling Minisci reaction direct photoexcitation.They researched the compound: 1,10-Phenanthroline( cas:66-71-7 ).Application of 66-71-7. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:66-71-7) here.
The photoexcitable borate enabling Minisci C-H alkylation of heteroarene has been described. This protocol using alkylborate only needed O2 and visible light, which provides a considerably clean system. The direct photoexcitation of alkylborate allowed the generation of tertiary, secondary, and primary-alkyl radical including Me radical. This light-driven Minisci reaction gave a choice for the functionalization of heteroarenes.
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Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics