13481-33-9Relevant articles and documents
Photo-redox catalyzed dehydrazinative acylation of N-heterocycles: Via Minisci reaction
Hafeez, Saira,Saeed, Aamer
, p. 38683 - 38689 (2021/12/20)
Visible light-induced acylation of heteroaromatic compounds have been achieved using benzoyl hydrazides as an efficient acyl source under mild reaction conditions. The photo-redox catalyzed oxidative cleavage of hydrazides leads to in situ formation of ac
Acyl Radicals from Terminal Alkynes: Photoredox-Catalyzed Acylation of Heteroarenes
Sultan, Shaista,Rizvi, Masood Ahmad,Kumar, Jaswant,Shah, Bhahwal Ali
supporting information, p. 10617 - 10620 (2018/07/31)
A photoredox-mediated acylation reaction of electron deficient heteroarenes with terminal alkynes is reported. The method relies on oxidative cleavage of phenylacetylenes for generation of acyl radicals as a key enabling feature. The reaction is regiosele
Gold-Catalyzed Ring Expansion of Alkynyl Heterocycles through 1,2-Migration of an Endocyclic Carbon-Heteroatom Bond
Chen, Ming,Sun, Ning,Xu, Wei,Zhao, Jidong,Wang, Gaonan,Liu, Yuanhong
supporting information, p. 18571 - 18575 (2016/01/26)
A mild and efficient gold-catalyzed oxidative ring-expansion of a series of alkynyl heterocycles using pyridine-N-oxide as the oxidant has been developed, which affords highly valuable six- or seven-membered heterocycles with wide functional group toleration. The reaction consists of a regioselective oxidation and a chemoselective migration of an endocyclic carbon-heteroatom bond (favored over C-H migration) with the order of migratory aptitude for carbon-heteroatom bonds being C-S>C-N>C-O. In the absence of an oxidant, polycyclic products are readily constructed through a ring-expansion/Nazarov cyclization reaction sequence.