ChemicalBook CAS DataBase List N,N-Dimethylacrylamide

N,N-Dimethylacrylamide synthesis

12synthesis methods

Product Name:N,N-Dimethylacrylamide
CAS Number:2680-03-7
Molecular formula:C5H9NO
Molecular Weight:99.13

2682-34-0
14 suppliers
$1232.00/2.5g

2680-03-7
345 suppliers
$10.00/5g

Yield:2680-03-7 1202 g

Reaction Conditions:

with hydrogen at 52; under 1200.12 Torr; for 5.5 h;Autoclave;Large scale;Reagent/catalyst;Temperature;Pressure;

Steps:

6 Example 6

414.7g potassium acetylene placed in a flask, was added dropwise a solution containing 1194g dimethylamino formyl iodine, the solvent is 1,4-dioxane, and the solution was added dropwise to maintain the process temperature of the flask at 0 ~ 5 , dropwise after completion of the reaction temperature was raised to 56 deg.] C, the reaction time was 3.5 hours. after completion of the reaction was filtered, the filtrate was distilled under reduced pressure to give 1469.1gN, N- dimethyl propiolamide, purity 97.9%; the 1469.1gN, N- two methyl propiolamide placed in an autoclave, the catalyst was added 7.35g Pd-Al2O3-Li, uninterrupted flow of hydrogen at a temperature of 52 , 0.16MPa under pressure of the reaction for 5.5 hours after the reaction by distillation under reduced pressure, to give 1202.0gN, N- dimethylacrylamide, 97.4% purity.

References:

CN105693540,2016,A Location in patent:Paragraph 0040; 0041