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CAS RN: 10513-45-8 | 产品编码: B0832
N-tert-Butyl-5-methylisoxazolium Perchlorate

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* 更多信息,请联系营业部:021-67121386 / Sales-CN@TCIchemicals.com 。任何货期、规格或包装方面的需求,请联系我们 。
* 无具体发货日期的情况,如:显示“8个工作日后发货”,将在您订购日起的8个工作日后发货。
* 我们将以最优方式从上海/天津两大仓库发货。国内库存不足,需两周左右向日本总部调货。
* 对于可分装产品,11:30前的订单,当天发货;11:30后的订单,隔天发货。
* 如需大包装,请点击“大包装询价”按钮(对于某些产品我们无法提供大包装)。
* TCI会经常复审储藏条件以对其进行优化,请以在线目录为准,敬请留意。
* 更多信息,请联系营业部:021-67121386 / Sales-CN@TCIchemicals.com 。任何货期、规格或包装方面的需求,请联系我们 。
技术规格
Appearance | White to Light yellow to Light red powder to crystal |
Purity(HPLC) | min. 98.0 area% |
Purity(with Total Nitrogen) | min. 98.0 % |
Melting point | 119.0 to 122.0 °C |
物性(参考值)
熔点 | 119 °C |
GHS
象形图 |
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信号词 | 警告 |
危险性说明 | H272 : 可能加剧燃烧;氧化剂。 |
防范说明 | P501 : 将内装物/容器送到批准的废物处理厂处理。 P220 : 避开/贮存处远离服装/可燃材料。 P210 : 远离热源。 P221 : 采取一切防范措施,避免与可燃物/.?混合。 P280 : 戴防护手套/戴防护眼罩/戴防护面具。 P370 + P378 : 火灾时:使用干砂、干粉或抗醇泡沫灭火。 |
相关法规
新化学物质备案回执号 | B1A232214861 |
运输信息
UN编号 | UN1479 |
类别 | 5.1 |
包装类别 | III |
监管条件代码(*) |
应用
Woodward’s Reagent L: A Condensing Agent
Experimental procedure1):
Under nitrogen, N-tert-butyl-5-methylisoxazolium perchlorate (240 mg, 1 mmol) is added to a mixture of 3-quinoline carboxylic acid (173 mg, 1 mmol) and triethylamine (140 µL, 1 mmol) in DMF (2 mL). The mixture is stirred at room temperature for 4 h and then poured on iced water (50 mL). The precipitate is collected, washed with water and dried. The intermediate ester 1 (131 mg, 0.44 mmol) is isolated in 44% yield as a yellow powder. Then the product (110 mg, 0.36 mmol) in DMF (3 mL) is added to a freshly prepared guanidine 2 (123 mg, 0.39 mmol) and the mixture is stirred at 140 °C for 2 h. The solvent is evaporated under reduced pressure. Water (10 mL) is added to the residue, and after 12 h at 4 °C, the precipitate formed is filtered, washed with water, and dried to obtain compound 3 in 85% yield.
Under nitrogen, N-tert-butyl-5-methylisoxazolium perchlorate (240 mg, 1 mmol) is added to a mixture of 3-quinoline carboxylic acid (173 mg, 1 mmol) and triethylamine (140 µL, 1 mmol) in DMF (2 mL). The mixture is stirred at room temperature for 4 h and then poured on iced water (50 mL). The precipitate is collected, washed with water and dried. The intermediate ester 1 (131 mg, 0.44 mmol) is isolated in 44% yield as a yellow powder. Then the product (110 mg, 0.36 mmol) in DMF (3 mL) is added to a freshly prepared guanidine 2 (123 mg, 0.39 mmol) and the mixture is stirred at 140 °C for 2 h. The solvent is evaporated under reduced pressure. Water (10 mL) is added to the residue, and after 12 h at 4 °C, the precipitate formed is filtered, washed with water, and dried to obtain compound 3 in 85% yield.
References
- 1) Chemical Delivery System of Metaiodobenzylguanidine (MIBG) to the Central Nervous System
- 2) Stable enol esters from N-tert-butyl-5-methylisoxazolium perchlorate
参考文献