Synthesis of Cationic [4], [5], and [6]Azahelicenes with Extended π-Conjugated Systems
نویسندگان
چکیده
The scope of Rh-catalyzed C–C bond cleavage/annulation biphenylene with various aromatic nitriles was studied. subsequent Rh- and Ir-catalyzed C–H activation/annulation sequence the formed 9-arylphenanthridines alkynes gave rise to cationic [4], [5], [6] helical quinolizinium salts. reaction respect structural features starting Their arrangement confirmed through single-crystal X-ray analyses selected compounds. Most prepared salts exhibited fluorescence emission maxima in region 525–623 nm absolute quantum yields up 25%.
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ژورنال
عنوان ژورنال: Catalysts
سال: 2023
ISSN: ['2073-4344']
DOI: https://doi.org/10.3390/catal13050912