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| CAS号 : | 527-69-5 |
精确质量 : | 129.98200 |
| 分子式 : | C5H3ClO2 |
logP : | 1.65860 |
| 分子量 : | 130.52900 |
PSA : | 30.21000 |
呋喃甲酰氯 | |
2-Furoyl chloride | |
527-69-5 | |
C5H3ClO2 | |
130.52900 | |
30.21000 | |
1.65860 | |
129.98200 |
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n20/D 1.531(lit.)
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透明黄色至棕色
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185 °F
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173-174 °C(lit.)
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−2 °C(lit.)
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1.324 g/mL at 25 °C(lit.)
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DECOMPOSES
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Store in a cool, dry place. Store in a tightly closed container. Corrosives area.
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GHS05 | |
危险 | |
H314 | |
P280; P305 + P351 + P338; P310 | |
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LT9925000
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3
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29321900
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8
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S26-S36/37/39-S45
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II
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UN 3265 8/PG 2
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C
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R34
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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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<p>1、由2-呋喃甲酸与亚硫酰氯反应而得。将2-呋喃甲酸与亚硫酰氯的混合物于100℃回流1h,然后蒸馏,先蒸出过量亚硫酰氯,再收集173-174℃馏分,得呋喃甲酰氯,收率79%。 <br>2、溶剂法 投料比(质量)2-呋喃甲酸:氯化亚砜:间氨基苯甲酰氯:苯=1:0.<br>8 :0.03 :1.<br>5 在搪玻璃反应釜中加入2-呋喃甲酸、间氨基苯甲酰氯和苯,开启搅拌及加热系统,升温至50℃。开始滴加氯化亚砜,温度控制在50~60℃。加完后在65~70℃下搅拌4h,再减压蒸馏回收苯,然后接受1.87kpa下66~68℃馏分,收率大于90%,含量大于98%。</p> | |
<p>医药中间体。</p> |
