Aghaie K, Amiri K, Rezaei-Gohar M, Rominger F, Dar'in D, Sapegin A, Balalaie S. Transition-metal-free intramolecular double hydrofunctionalization of alkyne to access 6/7/5-fused heterocyclic skeletons.
Chem Commun (Camb) 2024;
60:2661-2664. [PMID:
38351677 DOI:
10.1039/d3cc05724k]
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Abstract
We describe a novel intramolecular double hydrofunctionalization cyclization of alkyne with nitrogen and oxygen nucleophilic groups to construct valuable 6/7/5-fused heterocyclic products. This post-Groebke-Blackburn-Bienaymé (GBB) reaction introduces a new class of functionalized isocyanides. Transition-metal-free cyclization, broad substrate scope, and high atom economy were some features of the present protocol.
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