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| CAS号 : | 13369-70-5 |
精确质量 : | 106.01900 |
| 分子式 : | C4H7ClO |
logP : | 1.36170 |
| 分子量 : | 106.55100 |
PSA : | 9.23000 |
2-氯四氢呋喃 | |
2-chlorooxolane | |
13369-70-5 | |
C4H7ClO | |
106.55100 | |
9.23000 | |
1.36170 | |
106.01900 |
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1.445
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41.9ºC
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12mmHg at 25°C
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1.13g/cm3
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130.2ºC at 760mmHg
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2932190090
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品名, 成分含量, 用途 |
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2932190090 其他结构上有非稠合呋喃环化合物. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:6.5% 普通关税:20.0% |
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2932190090 other compounds containing an unfused furan ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0% |
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2932190090. Other Compounds containing an unfused furan ring (whether or not hydrogenated) in the structure. General tariff: |
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现用现制。在20℃和干燥条件下,在新蒸的48ml四氢呋喃中,迅速加入重蒸的2.16g(16mmol)硫酰氯,反应放热并立即呈现绿色。升温到40~50℃再反应15min,颜色消失。产物(产率85%)不经分离(3h内活性不变),并在N2存在下就可与过量三乙胺的四氢呋喃溶液一起,加入到含反应底物的四氢呋喃溶液中进行反应。 | |
醇和酚的保护试剂,且对碱和亲核试剂稳定;也可与羧酸、硫醇、吡咯、酰胺和酰亚胺等反应形成四氢-2-呋喃衍生物,与尿嘧啶反应成N-取代四氢呋喃衍生物。 |
