Synthesis of Dioxa Spiro [4.5] Ketals from Carbohydrates via Radical Oxidative Cycloaddition
碩士 === 靜宜大學 === 應用化學系 === 90 === Methyl 2,3,4-tri-O-acetyl-6-deoxy-α-D-xylo-5-enopyranoside 4 viewed as an electron-rich alkene and a redical-acceptor have been successfully prepared from methylα-D-glucopyranoside 1. CericIV ammonium nitrate（CAN） induced ethyl acetoacetate to g...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2002
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| Online Access: | http://ndltd.ncl.edu.tw/handle/06110180778715152778 |
| Summary: | 碩士 === 靜宜大學 === 應用化學系 === 90 === Methyl 2,3,4-tri-O-acetyl-6-deoxy-α-D-xylo-5-enopyranoside 4 viewed as an electron-rich alkene and a redical-acceptor have been successfully prepared from methylα-D-glucopyranoside 1.
CericIV ammonium nitrate（CAN） induced ethyl acetoacetate to generate an electron-poor radical, which was treated with 4 to proceed radical addition-oxidation-cyclization to obtain an optical dioxa spiro [4.5] ketal 5.
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