N-Heterocyclic Carbene-Catalyzed Cyclization of Aldehydes with α-Diazo Iodonium Triflate: Facile Access to 2,5-Disubstituted 1,3,4-Oxadiazoles.
Sign Up to like & getrecommendations! Published in 2021 at "Organic letters"
DOI: 10.1021/acs.orglett.1c01128
Abstract: Herein, we report a novel organocatalytic process for synthesis of complex 1,3,4-oxadiazoles from readily accessible aldehydes. By exploiting the nucleophilicity of the putative Breslow intermediate and the inherent electrophilicity of α-diazo iodonium triflate, we have… read more here.
Keywords: aldehydes diazo; diazo iodonium; cyclization; iodonium triflate ... See more keywords
Synthesis of Multifunctional Aryl(trifloxyalkenyl)iodonium Triflate Salts
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DOI: 10.1021/acsomega.9b00728
Abstract: A convenient procedure for the synthesis of aryl(trifloxyalkenyl)iodonium triflate salts from commercially available (diacetoxyiodo)benzene, trimethylsilyl trifluoromethanesulfonate, and acetylenes under mild conditions was developed. The obtained multifunctional hypervalent vinyliodonium salts equipped with electrophilic and nucleophilic functions… read more here.
Keywords: triflate salts; trifloxyalkenyl iodonium; iodonium; iodonium triflate ... See more keywords