2004
DOI: 10.1002/jhet.5570410605
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Synthesis of new isoxazoles derivatives attached to sugar moieties

Abstract: This work reports the synthesis of isoxazoles linked to sugar derivatives in different positions of furanosidic rings, by intramolecular oxidative cyclization of α,β‐unsaturated oximes with iodine, potassium iodide and sodium hydrogen carbonate. These oximes were obtained from aldehyde‐sugar derivatives.

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Cited by 8 publications
(3 citation statements)
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“…The synthesis of isoxazoles attached to sugar moieties via oxidative cyclization of a,b-unsaturated oximes has been reported [119]. The isoxazoles were obtained by reacting the oximes with potassium iodide and sodium hydrogen carbonate at 100 C (64-68% yield).…”
Section: Tautomerismmentioning
confidence: 99%
“…The synthesis of isoxazoles attached to sugar moieties via oxidative cyclization of a,b-unsaturated oximes has been reported [119]. The isoxazoles were obtained by reacting the oximes with potassium iodide and sodium hydrogen carbonate at 100 C (64-68% yield).…”
Section: Tautomerismmentioning
confidence: 99%
“…As shown in Scheme , d -glucose was converted to the known alcohol 6 as reported earlier . Dihydroxylation of 6 using catalytic amount of K 2 OsO 4 ·2H 2 O (5 mol %) and NMO as a cooxidant afforded triol which was directly subjected to oxidative cleavage using sodium metaperiodate to give aldehyde 7 . Reductive amination of 7 using benzylamine and sodium cyanoborohydride in methanol followed by treatment with benzyloxycarbonyl chloride and sodium bicarbonate in methanol-water afforded N -Cbz protected amino alcohol 8 .…”
mentioning
confidence: 95%
“…A síntese de isoxazol aril C-glicosídeo acetilado foi realizada a partir da reação da oxima aril C-glicosídeo, por meio da ciclização oxidativa intramolecular de oximas insaturadas, com iodeto de potássio, iodo, bicarbonato de sódio em água e posterior reação de acetilação (Figura 46). Fonte: Adaptado (LLANTÉN et al, 2017;PINHEIRO et al, 2004).…”
Section: Procedimento Para Preparação Do Isoxazol Aril C-glicosídeo Aunclassified