2009
DOI: 10.1021/jo900594x
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Huisgen Cycloaddition Reaction of C-Alkynyl Ribosides under Micellar Catalysis: Synthesis of Ribavirin Analogues

Abstract: Carbonated analogues of ribavirin were synthesized from ethyl C-ribosylpropiolate obtained by an alkynylation reaction mediated by indium(0). The C-ribosides were then engaged in a Huisgen 1,3-dipolar cycloaddition reaction under a micellar catalysis. In these conditions, formation of 1,2,3-triazoles with control of the regioselectivity was observed. The regiochemistry of the adducts was determined by HMBC 2D-NMR analysis.

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Cited by 59 publications
(34 citation statements)
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References 34 publications
(23 reference statements)
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“…Indium-mediated alkynylation of carbonyl compounds and sugar derivatives was largely developed in our laboratory [6][7][8][9][10][11]. In order to extend this reactivity to more functionalized molecules, we first explored the reaction of alkynyl iodide 3 with 2,3,4,5-tetra-O-benzyl-1-formylglucopyranose that was prepared in three steps starting from perbenzylgluconolactone [17].…”
Section: Coupling Reactionsmentioning
confidence: 99%
See 1 more Smart Citation
“…Indium-mediated alkynylation of carbonyl compounds and sugar derivatives was largely developed in our laboratory [6][7][8][9][10][11]. In order to extend this reactivity to more functionalized molecules, we first explored the reaction of alkynyl iodide 3 with 2,3,4,5-tetra-O-benzyl-1-formylglucopyranose that was prepared in three steps starting from perbenzylgluconolactone [17].…”
Section: Coupling Reactionsmentioning
confidence: 99%
“…This reaction allows the easy obtaining of the corresponding propargylic alcohols. We have also extended it to the anomeric position of carbohydrates leading thus to the synthesis of C-glycosides [8][9][10][11]. In this case the possession of such iodoethynylglycine precursors allows us envisaging a pathway towards the synthesis of C-glycosylated amino acids, more stable analogues of Glc-Ser or other O-glycosylated amino acids.…”
Section: Introductionmentioning
confidence: 99%
“…Lubin-Germain and Uziel et al used an alkynylindium reagent, which was generated in situ from indium(0) and TMS-alkynyl iodide, to introduce the TMS-alkynyl group to 1-O-acetyl-2,3,5-tri-O-benzyl-D-ribofuranose. 3 Botta and co-workers demonstrated that 1-O-acetyl-2,3,5-tri-O-benzoyl-D-ribofuranose reacted with trimethylsilylacetylene in the presence of EtAlCl 2 to afford 1-deoxy-1-trimethylsilylalkynyl-D-ribofuranose. 4 However, both protocols gave the corresponding C-ribonucleosides as anomeric mixtures, which can be difficult to separate.…”
Section: Introductionmentioning
confidence: 99%
“…43 istražili su mogućnosti primjene surfaktanata (površinski aktivnih tvari) i tzv. micelarnu katalizu.…”
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