Kim, Weonjeong; Koo, Jangwoo; Lee, Hong Geun published the article 《Benzylic C(sp3)-C(sp2) cross-coupling of indoles enabled by oxidative radical generation and nickel catalysis》. Keywords: benzylic indole preparation; indole aryl halide arylation cross coupling photocatalyst; acyl indole preparation; acid anhydride indole acylation cross coupling photocatalyst.They researched the compound: Nickel(II) chloride ethylene glycol dimethyl ether complex( cas:29046-78-4 ).Recommanded Product: 29046-78-4. 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:29046-78-4) here.
A mechanistically unique functionalization strategy for a benzylic C(sp3)-H bond was developed based on facile oxidation event of indole substrates. This novel pathway was initiated by efficient radical generation at benzylic position of substrate, with subsequent transition metal catalysis to complete overall transformation. Ultimately, an aryl or an acyl group could be effectively delivered from an aryl (pseudo)halide or an acid anhydride coupling partner, resp. The developed method utilized mild conditions and exhibited a wide substrate scope for both substituted indoles and C(sp2)-based reaction counterparts. Mechanistic studies showed that competitive hydrogen atom transfer (HAT) processes, which were frequently encountered in conventional methods, are not involved in the product formation process of the developed strategy.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles