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ChemicalBook CAS DataBase List N,N-Dibutylformamide
761-65-9

N,N-Dibutylformamide synthesis

9synthesis methods
In a glove box, catalyst Rh/I (16.5 mg), N-methylpyrrolidone (1.0 mL), di-n-butylamine (168 μL, 1 mmol), and decane (10 μL,0.05 mmol) were added to the reaction kettle. Then CO2 was charged to replace the nitrogen in the kettle for three times, and then C
-

Yield:761-65-9 557 g

Reaction Conditions:

with water at 160 - 190; under 9000.9 Torr; for 3.41667 h;Autoclave;

Steps:

4 Example 4: Preparation of N,N-Dibutylformamide
85% of formic acid, 170.5g (ie, 25.5g of water) and 99% of dibutylamine, 391g, were added to a 1-litre high-pressure reactor and the stirrer was turned on to obtain a homogenous reaction. system. The molar ratio of formic acid to butanediamine is 1.05:1.While maintaining stirring, the homogeneous reaction system was heated to about 160° C. After about 55 minutes of incubation, the temperature was raised to about 190° C., and the pressure in the autoclave increased to about 1.2 MPa. Continue to rise, basically maintaining stability, maintaining the reaction for about 2.5 hours, emptying and draining off the carbon monoxide and water vapor in the autoclave.The reaction product was collected to give about 557 g of a uniform and transparent solution.

References:

Beijing Jutai Technology Co., Ltd.;Tang Chenghan;Zhao Yunjian;Wei Anxing;Guo Wei CN107501115, 2017, A Location in patent:Paragraph 0071-0075

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