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CAS RN: 865-47-4 | 產品號碼: P1008

Potassium tert-Butoxide


纯度/分析方法: >97.0%(T)
別名
文件:
25G
NT$760
≥100  2   下單後約3-4週內可以出貨
100G
NT$1,520
33   ≥100  下單後約3-4週內可以出貨
500G
NT$4,440
≥40  ≥60  下單後約3-4週內可以出貨

* 以上價格已含運費關稅等但一些需要海運以及乾冰運輸的產品除外,詳情請與 當地經銷商 洽詢。
* TCI會時常優化儲存條件,儲存溫度請以在線目錄為準,敬請留意。


產品號碼 P1008
純度/分析方法 >97.0%(T)
分子式 / 分子量 C__4H__9KO = 112.21 
外觀與形狀(20°C) Solid
儲存條件 Room Temperature (Recommended in a cool and dark place, <15°C)
儲存在惰性氣體下 Store under inert gas
應避免的情況 Hygroscopic
CAS RN 865-47-4
Reaxys-RN 3556712
PubChem Substance ID 87575121
SDBS (AIST Spectral DB) 18431
MDL編號

MFCD00012162

產品規格
Appearance White to Light yellow powder to crystal
Purity(Neutralization titration) min. 97.0 %
性質
熔點 240 °C(dec.)
溶解性(可溶於) Ether
GHS
圖形表示 Pictogram Pictogram
信號詞 Danger
危險性說明 H314 : Causes severe skin burns and eye damage.
H251 : Self-heating; may catch fire.
防範說明 P501 : Dispose of contents/ container to an approved waste disposal plant.
P260 : Do not breathe dusts or mists.
P235 + P410 : Keep cool. Protect from sunlight.
P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection.
P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P301 + P330 + P331 : IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P363 : Wash contaminated clothing before reuse.
P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.
P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor.
P407 : Maintain air gap between stacks/ pallets.
P420 : Store away from other materials.
P405 : Store locked up.
相關法規
運輸資料
UN編號 UN3206
類別 4.2 / 8
包裝類別 II
HS編碼* 2905.19-000
*此H.S.編碼用於日本出口報關, 不適用於您所在國家或地區的進口申報
Application
TCI Practical Example: Synthesis of Amide via the Meervein-Ponndolf-Verley Type Reaction Using tBuOK

Title

Used Chemicals

Procedure

To a solution of benzyl alcohol (540 mg, 5.0 mmol), benzonitrile (1.03 g, 10 mmol, 2.0 eq.) in 1,4-dioxane (10 mL) was added potassium tert-butoxide (1.12 g, 10.0 mmol, 2.0 eq.) at r.t. and the mixture was stirred at 130 °C for overnight. The solvent was removed under reduced pressure and the residue was purified by column chromatography (on silica gel, ethyl acetate:hexane = 0:1 - 1:2) several times, giving N-benzylbenzamide as a white solid (513 mg, 49% yield).

Experimenter’s Comments

The reaction mixture was monitored by UPLC.
The reaction was carried out using a pressure-resistant test tube.
Purification by column chromatography was performed several times.

Analytical Data

N-benzylbenzamide

1H NMR (270 MHz, DMSO-d6); δ 9.05 (brt, 1H, J = 5.4 Hz), 7.90 (dd, 1H, J = 7.3, 1.6 Hz), 7.56-7.44 (m, 3H), 7.36-7.32 (m, 4H), 7.25 (q, 1H, J = 7.3 Hz).

Lead Reference


Application
Acetylation of Alcohols via Transesterification using Acetylating Reagents

P1008

References

  • 1)Transesterification/Acylation of Secondary Alcohols Mediated by N-Heterocyclic Carbene Catalysts
  • 2)Protection for the Hydroxyl Group, Including 1,2- and 1,3-Diols
    • P. G. M. Wuts, in Greene’s Protective Groups in Organic Synthesis, 5th ed., ed. by P. G. M. Wuts, John Wiley & Sons, Inc., Hoboken, New Jersey, 2014, Chap. 2, 17.


Application
t-Butyldimethylsilylation of Alcohols using TBS Reagents

P1008

References

  • Potassium tert-Butoxide-Catalyzed Dehydrogenative Si-O Coupling: Reactivity Pattern and Mechanism of an Underappreciated Alcohol Protection
  • Protection for the Hydroxyl Group, Including 1,2- and 1,3-Diols
    • P. G. M. Wuts, in Greene’s Protective Groups in Organic Synthesis, 5th ed., ed. by P. G. M. Wuts, John Wiley & Sons, Inc., Hoboken, New Jersey, 2014, Chap. 2, 17.


考研文獻


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