A Modified Vilsmeier–Haack Strategy to Construct β-Pyridine-Fused 5,10,15,20-Tetraarylporphyrins
نویسندگان
چکیده
منابع مشابه
The photophysics of selectively metallated arrays of quinoxaline-fused tetraarylporphyrins.
A comprehensive study of the photophysical interactions occurring in tris-porphyrin and tetrakis-porphyrin arrays and has been undertaken. The arrays consist of porphyrins with quinoxaline units fused at the beta,beta'-pyrrolic faces of the macrocycle. The linkage geometry is such that these arrays resemble the arrangement of chromophores that constitute natural photosynthetic reaction centres ...
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15 صفحه اولSynthesis of a pyridine-fused porphyrinoid: oxopyridochlorin.
The treatment of 3,5-dibenzoylporphyrins with ammonium acetate provided novel oxopyridochlorins as the first examples of pyridine-fused porphyrinoids, which displayed absorption bands reaching into the near IR region and an ability to sensitize singlet oxygen effectively.
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Diversity-oriented synthesis of the biologically intriguing imidazo[1,2-a]pyridine-fused isoquinoline systems from readily available starting materials was achieved through the Groebke-Blackburn-Bienaymé reaction followed by a gold-catalyzed cyclization strategy. The synthetic approach is characterized by mild reaction conditions and a broad substrate scope, allowing for the rapid construction ...
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Photolysis of the thiohydroximate ester derivative 21 of 2-carboethoxy-2-(2- (benzylseleno)pyridin-3-yl)tridecylcarboxylic acid (20) affords 2-dodecyl-2- carboethoxy-2,3-dihydroselenolo[2,3-b]pyridine (22) in 89% yield in a process presumably involving intramolecular homolytic substitution by a tertiary alkyl radical at selenium with loss of a benzyl radical. Work toward extending this methodol...
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ژورنال
عنوان ژورنال: SynOpen
سال: 2020
ISSN: 2509-9396
DOI: 10.1055/s-0040-1707429