Straightforward access to 2,3- and 3,4-unsaturated derivatives of N-glycolylneuraminic acid
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DOI: 10.1016/j.tet.2020.131699
Abstract: Abstract The facile syntheses of previously unreported 2,3- and 3,4-unsaturated derivatives of N-glycolyl neuraminic acid are herein described. The procedure involves a ring-opening of the 4,5-oxazoline of N-acetyl neuraminic acid, the acylation of the intermediate… read more here.
Keywords: straightforward access; access unsaturated; unsaturated derivatives; derivatives glycolylneuraminic ... See more keywords
Efficient and environmentally-friendly access to 4,5-unsaturated sulfonamides through a ligand-free copper-BF3-catalyzed three-component alkene carbo-sulfonamidation
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DOI: 10.1039/d3qo00268c
Abstract: Though sulfonamides are biologically important molecules, the scope of their structures is narrow due to the limited methods available for synthesis. Alkene functionalization has recently gained attention for synthesis of... read more here.
Keywords: efficient environmentally; environmentally friendly; access unsaturated; unsaturated sulfonamides ... See more keywords