Novel IBX-Mediated Processes for the Syn
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K. C. Nicolaou; Phil. S. Baran; Yong-Li Zhong; Juan A. Vega
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Article
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2000
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John Wiley and Sons
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English
โ 279 KB
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Scheme 3. IBX-Mediated synthesis of amino sugar derivative 8 from carbohydrate 7. Reagents and conditions: a) pMeOC 6 H 4 NCO (2, 1.1 equiv), DBU (0.1 equiv), CH 2 Cl 2 , 258C, 1 h, 95 %; b) IBX (2.0 equiv), THF:DMSO (10:1), 90 8C (sealed tube), 8 h; then IBX (2.0 equiv), 8 h, 84 %; c) CAN (5.0 equi