A Cu-mediated domino di-/triarylation reaction of imidazoles in a single step by using two aryls as well as an anion of a diaryliodonium salt is developed to quickly achieve polyaryl imidazolium salts.
Multidentate
ligands are highly important but difficult to access.
Herein we disclose an atom- and step-economic synthesis of highly
substituted 1,1′-biisoquinolines by a C–H activation/bididirecting
group strategy. Through rational design of a bididirecting group to
“N–OH + N–OAc”, selective unsymmetrical
diannulation with two different alkynes in a one-pot reaction has
been achieved for the first time to access unsymmetrical biisoquinolines.
Moreover, the resultant biisoquinolines show tunable photoluminescence
and serve as aggregation-induced emission (AIE) systems.
Organic ionic compounds, especially for those with organic cations, are commonly applied to ionic liquids (ILs), organocatalysts, (a)NHC ligands, ion recognition, and optoelectronic materials. Direct C−H functionalization of organic cations...
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