引用本文:
施梅, 方志杰. 碘甲基化法合成D-葡萄庚酮糖[J]. 应用化学,
2012, 29(3): 266-269.
doi:
10.3724/SP.J.1095.2012.00138
Citation: SHI Mei, FANG Zhijie. Application of Iodomethylation to Synthesis of D-Glucoheptulose[J]. Chinese Journal of Applied Chemistry, 2012, 29(3): 266-269. doi: 10.3724/SP.J.1095.2012.00138

Citation: SHI Mei, FANG Zhijie. Application of Iodomethylation to Synthesis of D-Glucoheptulose[J]. Chinese Journal of Applied Chemistry, 2012, 29(3): 266-269. doi: 10.3724/SP.J.1095.2012.00138

碘甲基化法合成D-葡萄庚酮糖
English
Application of Iodomethylation to Synthesis of D-Glucoheptulose
Abstract:
D-Glucoheptulose was synthesized by iodomethylation using D-glucolactone as the starting material.Firstly,2,3,4,6-tetra-O-trimethylsilanyl-D-glucolactone was prepared from D-glucolactone under the catalyst of N-methylmorpholine,with a yield of 95%.Secondly,2,7-dehydrate-β-D-glucoheptulopyranose was synthesized by addition of iodomethyl lithium generated from CH2I2/n-BuLi to the carbonyl group of lactone,and then hydrolysis under basic conditions,with a yield of 62%.Finally,D-glucoheptulose was prepared by hydrolysis under acidic conditions,with a yield of 90%(total yield 53%).The acetylated products of the target compound D-glucoheptulose and the key intermediate 2,7-dehydrate-β-D-glucoheptulopyranose were characterized by NMR.
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Key words:
- iodomethylation
- / D-glucoheptulose
- / synthesis
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