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| CAS号 : | 87-13-8 |
精确质量 : | 216.10000 |
| 分子式 : | C10H16O5 |
logP : | 1.03300 |
| 分子量 : | 216.23100 |
PSA : | 61.83000 |
乙氧基甲叉丙二酸二乙酯 | |
Diethyl ethoxymethylenemalonate | |
87-13-8 | |
C10H16O5 | |
216.23100 | |
61.83000 | |
1.03300 | |
216.10000 |
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n20/D 1.463
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透明液体
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311 °F
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279-283 °C(lit.)
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-33°C
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insoluble
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1.080 g/mL at 20 °C(lit.)
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Stable under normal temperatures and pressures.
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Store in a cool, dry place. Keep container closed when not in use.
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OO1100000
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1
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S26-S36/37/39-S27-S24/25
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2918990090
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Xn
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R42/43
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2933990090
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2933990090. 其他仅含氮杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0% | |
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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暂时无法加载合成路线，请稍后刷新重试 |
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<p>将原甲酸三乙酯、醋酐、丙二酸二乙酯和无水氧化锌的混合物搅拌加热,在102-115℃保温2.5h,在115-127℃保温7h,再补加部分醋酐和原甲酸三乙酯,继续升温至127-145℃保温2h,145-155℃保温2h。然后将反应物冷至室温,过滤。滤液减压蒸馏,收集108-110℃(33Pa)馏分,得成品,收率50-60%。</p> | |
<p>本品是一种分子中含有多种活性基团的重要有机原料,能与多种物质进行缩聚和环化缩合,现主要用于合成氟哌酸。</p> |
