Visible-Light-Mediated Tandem Sulfonylation/Cyclization of Vinyl Azides with Sulfonyl Hydrazines for the Synthesis of 6-(Sulfonylmethyl)phenanthridines under Mild Conditions
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DOI: 10.1055/s-0037-1611758
Abstract: A visible-light-mediated tandem sulfonylation/cyclization of vinyl azides with sulfonyl hydrazines was developed that provides an efficient and simple strategy for the synthesis of valuable 6-(sulfonylmethyl)phenanthridines with a broad substrate scope and satisfactory yields under mild… read more here.
Keywords: sulfonylation cyclization; visible light; cyclization vinyl; mediated tandem ... See more keywords
Imidazolium ylide mediated tandem Knoevenagel–Michael–O-cyclization sequence for the synthesis of multi-substituted 4,5-dihydrofurans
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DOI: 10.1080/00397911.2020.1821226
Abstract: Abstract The stereoselective syntheses of novel trans-5-aroyl-2,4-diaryl-4,5-dihydrofuran-3-carbonitriles have been achieved via a one-pot, three-component tandem protocol involving aroyl acetonitriles, aromatic aldehydes, and imidazolium ylide in the presence of Et3N. Graphical Abstract read more here.
Keywords: mediated tandem; michael cyclization; tandem knoevenagel; imidazolium ylide ... See more keywords