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CAS RN: 90965-06-3 | 產品號碼: D3546

Dimethyl (1-Diazo-2-oxopropyl)phosphonate


纯度/分析方法: >97.0%(HPLC)
別名
  • (1-Diazo-2-oxopropyl)phosphonic Acid Dimethyl Ester
  • Dimethyl 1-Diazoacetonylphosphonate
  • 1-Diazoacetonylphosphonic Acid Dimethyl Ester
  • Ohira-Bestmann Reagent
文檔:
1G
$134.00
≥20  ≥20 
5G
$490.00
≥20  ≥20 

*以上價格僅為出廠價不含運費關稅等,詳情請與 當地經銷商TCI 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 D3546
純度/分析方法 >97.0%(HPLC)
分子式 / 分子量 C__5H__9N__2O__4P = 192.11  
外觀與形狀(20°C) Liquid
儲存條件 0-10°C
儲存在惰性氣體下 Store under inert gas
應避免的情況 Air Sensitive,Heat Sensitive
CAS RN 90965-06-3
Reaxys-RN 4247670
PubChem Substance ID 87559944
Merck Index(14) 1177
MDL編號

MFCD07368360

質量規格
Appearance Light yellow to Brown clear liquid
Purity(HPLC) min. 97.0 area%
性質
比重 1.28
折射率 1.48
GHS
相關法規
運輸資料
HS編碼* 2931.39-000
*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
Synthesis of Phosphonyl Pyrazoles

Typical Procedure: To a stirred solution of aldehyde (1 mmol), cyanoacid derivative (1.2 mmol) and Ohira-Bestmann reagent (1.5 mmol) in distilled MeOH (4 mL), is added molecular sieves followed by powdered KOH (2 mmol). The reaction mixture is stirred at room temperature for one hour. After the completion of the reaction (TLC monitoring), methanol is distilled off under reduced pressure. The crude residue is dissolved in ethyl acetate (50 mL) and washed with saturated ammonium chloride (2×20 mL). Finally the organic layer is washed with saturated brine (20 mL) and dried over anhydrous sodium sulphate. After removal of the solvent, column chromatographic purification is carried out using acetone-dichloromethane as eluent to afford the products.

References


Application
One-pot Synthesis of Terminal Alkynes

References


考研文獻


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