An efficient, one-pot, and cheap metal-catalyzed tandem Chan-Lam coupling/deprotection/oxidation reaction to access unsymmetrical azobenzenes is disclosed. In this protocol, phthaloyl is automatically fallen off under this basic catalytic system, without...
A new route to various substituted fluoren-9-ones has been developed via an efficient Pd-catalyzed carbonylative multiple C-C bond formation. Under a CO atmosphere, using commercially available aryl halides and arylboronic acids as substrates, this three-component reaction proceeded smoothly in moderate to excellent yields with good functional-group compatibility. The mechanistic investigations suggested a sequential process for the reaction that forms o-bromobiaryls in the first stage followed by a cyclocarbonylation reaction. This chemistry has been successfully extended to construct ladder-type oligo-p-phenylene cores.
The homo anion-cation of cyclic diaryl λ3-bromanes/diarylbrominiums, which was not reported in previous reports, has been disclosed for the first time. The competitive experiments indicates that the anion-cation coupling is...
C–H annulations at N- and C2-aryls of an imidazole have been well researched, while the annulation on C4(5)-aryls especially the reactivity and site-selectivity among these aryls remain unknown. Herein, a...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.