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| CAS号 : | 815-17-8 |
精确质量 : | 130.06300 |
| 分子式 : | C6H10O3 |
logP : | 0.68620 |
| 分子量 : | 130.14200 |
PSA : | 54.37000 |
三甲基丙酮酸 | |
3,3-Dimethyl-2-oxobutyric acid | |
815-17-8 | |
C6H10O3 | |
130.14200 | |
54.37000 | |
0.68620 | |
130.06300 |
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1.439
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13 °C
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90.5ºC
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1.06
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80 °C / 15mmHg
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III
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8
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2918300090
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3261
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R36/37/38
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S26-S37/39
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品名, 成分含量, 用途 |
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2918300090 其他含醛基或酮基不含其他含氧基羧酸(包括酸酐、酰卤化物、过氧化物和过氧酸及该税号的衍生物). 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:30.0% |
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2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
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2918300090. Other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives. General tariff: |
其制备方法是将二氯频那酮加入反应釜,然后加水和一定量的碱液,在稀碱水溶液下加热水解,生成3,3-二甲基-2-羟基丁酸钠,然后滴加次氯酸钠溶液,在低温和催化剂存在下氧化,2-羟基被氧化成2-氧,氧化完成后,将催化剂过滤掉,所得滤液即3,3-二甲基丁酮酸钠,进一步酸化即得成品。 | |
3,3-二甲基丁酮酸是除草剂嗪草酮的中间体。 |