Synthesis of olefins via a Wittig reaction mediated by triphenylarsine.
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DOI: 10.1016/j.tetlet.2017.02.051
Abstract: An arsine-mediated Wittig reaction for the synthesis of olefins is described. After heating triphenylarsine in the presence of an activated alkyl bromide for 30 minutes, the resulting arsonium salt condensed with aldehydes in as little… read more here.
Keywords: olefins via; via wittig; synthesis olefins; wittig reaction ... See more keywords
Synthesis of cyclic olefins via Mitsunobu C-alkylation followed by Ramberg-Bäcklund ring contraction
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DOI: 10.1016/j.tetlet.2018.06.014
Abstract: Abstract Cyclic olefins were prepared via a novel synthetic approach that involves the formation of two C C bonds in a potentially stereoselective fashion. The first bond is formed by employing a Mitsunobu dehydrative C-alkylation;… read more here.
Keywords: olefins via; synthesis cyclic; cyclic olefins; ring contraction ... See more keywords
Regiospecific Three-Component Aminofluorination of Olefins via Photoredox Catalysis.
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DOI: 10.1021/acs.orglett.8b01760
Abstract: Direct visible-light-mediated aminofluorination of styrenes has been developed with high regioselectivity. Shelf-stable N-Ts-protected 1-aminopyridine salt was used as the nitrogen-radical precursor, and the commercially available hydrogen fluoride-pyridine was used as the nucleophilic fluoride source. The… read more here.
Keywords: olefins via; component aminofluorination; three component; aminofluorination ... See more keywords