Maximum quantity allowed is 999
CAS RN: 540-80-7 | 产品编码: N0357
tert-Butyl Nitrite
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Appearance | Colorless to Yellow to Orange clear liquid |
Purity(GC) | min. 90.0 % |
沸点 | 63 °C |
闪点 | -13 °C |
比重 | 0.87 |
折射率 | 1.37 |
水溶性 | 微溶, 与水接触发生分解 |
溶解性(可与之混溶) | 醇 |
象形图 | |
信号词 | 危险 |
危险性说明 | H302 + H332 : 吞咽或吸入有害。 H370 : 会损害器官。 H225 : 高度易燃液体和蒸气。 |
防范说明 | P501 : 将内装物/容器送到批准的废物处理厂处理。 P260 : 不要吸入粉尘/ 烟/ 气体/ 烟雾/ 蒸气/ 喷雾。 P270 : 使用本产品时不要进食、饮水或吸烟。 P240 : 容器和装载设备接地/等势联接。 P210 : 远离热源/火花/明火/热表面。禁止吸烟。 P233 : 保持容器密闭。 P243 : 采取防止静电放电的措施。 P241 : 使用防爆的电气/通风/照明设备。 P242 : 只能使用不产生火花的工具。 P271 : 只能在室外或通风良好之处使用。 P264 : 作业后彻底清洗皮肤。 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。 P308+P311 : 如接触到或有疑虑:呼叫急救中心/医生。 P303 + P361 + P353 : 如皮肤(或头发)沾染:立即脱掉所有沾污的衣物。用水清洗皮肤/淋浴。 P301 + P312 + P330 : 如误吞咽:如感觉不适,呼叫急救中心/医生。漱口。 P304 + P340 + P312 : 如误吸入:将人转移到空气新鲜处,保持呼吸舒适体位。如感觉不适,呼叫急救中心/医生。 P403 + P235 : 存放在通风良好的地方。保持低温。 P405 : 存放处须加锁。 |
RTECS# | RA0802000 |
新化学物质备案回执号 | B1A232215097 |
UN编号 | UN2351 |
类别 | 3 |
包装类别 | II |
监管条件代码(*) |
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Used Chemicals
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Procedure
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To a solution of p-anisidine (123 mg, 1.0 mmol), p-TsOH-H2O (190 mg, 1.0 mmol, 1.0 eq.), KI (415 mg, 2.5 mmol, 2.5 eq.) in acetonitrile (5 mL) was added dropwise tBuONO (0.30 mL, 2.5 mmol, 2.5 eq.) at 0 °C and the mixture was stirred at same temperature for 30 min. Then the reaction mixture was heated 60 °C and stirred for 4 h. After quenching with water (15 mL), it was extracted with ethyl acetate (15 mL x 3) and the organic layer was washed with 2 mol/L HCl aq. (15 mL), sat. NaHCO3 aq. (15 mL), brine (15 mL), dried over sodium sulfate and filtered. The solvent was removed under reduced pressure and the residue was purified by column chromatography (on silica gel, ethyl acetate:hexane = 1:4) to give 4-iodeanisole as a red solid (202 mg, 86% yield).
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Experimenter’s Comments
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The reaction mixture was monitored by UPLC.
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Analytical Data
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4-iodeanisole
1H NMR (400 MHz, CDCl3); δ 7.56 (d, J = 8.0 Hz, 2H), 6.68 (d, J = 8.0 Hz, 2H), 3.78 (s, 3H).
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Lead Reference
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- A New, One-Step, Effective Protocol for the Iodination of Aromatic and Heterocyclic Compounds via Aprotic Diazotization of Amines
Reference
- Benzyne Click Chemistry with in Situ Generated Aromatic Azides
1. Chlorination:1)
To a mixture of copper(II)chloride (24.35 g, 181.2 mmol), dry acetonitrile (200 mL) and tert-butyl nitrite (25.7 mL, 226.5 mmol), a solution of 4-bromo-2-chloro-5-fluoroaniline (33.9 g, 151 mmol) in dry acetonitrile (200 mL) is added at 60 ℃ under nitrogen. The mixture is stirred for 30 min at 60 ℃, followed by cooling to room temperature and addition of 2M HCl (400 mL). The phases are separated, and the water phase is extracted with diethyl ether (150 mL). The combined organic phases are washed with water and dried over MgSO4. The organic phase is concentrated on the rotary evaporator and is distilled at 150 ℃/ 20 mbar, yielding colourless oil (30 g, 111 mmol, 72% yield, 90% purity).
Anhydrous copper(II) bromide (6.8 g, 30.5 mmol), tert-butyl nitrite (4.3 mL, 36 mmol), and anhydrous acetonitrile (150 mL) are added to a three-neck round-bottom flask, and the mixture is heated to 65 ℃. 2,7-Diamino-9,10-anthraquinone (2.9 g, 12 mmol) is added slowly over a period of 5 min to the reaction mixture. Nitrogen is evolving during the reaction. After nitrogen evolution have subsided, the reaction mixture is cooled to room temperature and poured into an aqueous 20% HCl solution (100 mL). The crude solid product is collected, washed with ether, and chromatographed on a silica gel column (hexane : CH2Cl2 = 1: 1) to afford the desired product (2.6 g, Y.60%) as a yellow solid.
References
- 1)Synthesis of Dioxin-like Monofluorinated PCBs: for the Use as Internal Standards for PCB Analysis.
- 2)Arylethynyl Substituted 9,10-Anthraquinones: Tunable Stokes Shifts by Substitution and Solvent Polarity.
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