Process for preparing esteramide compounds
A compound and amide ester technology, applied in the field of preparing amide ester compounds, can solve the problems of lowering reaction kinetics, lowering productivity and the like of reaction temperature
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Embodiment 1
[0073] Embodiment 1 (comparison): dimethylamine (gas) joins in Mixture of IRIS / sodium methoxide In-T=20℃
[0074] A solution of sodium methoxide in methanol (50 wt % solution, weight 18.8 g) and 304 g of Rhodia under the trade name A mixture of 2-methyl-glutaric acid diester, 2-ethyl-succinic acid diester and adipate diester sold by IRIS was added to a well-stirred 1-liter double-jacketed reaction set with mechanical stirring and pre-dried device.
[0075] The reaction medium was seen to have an orange color.
[0076] The temperature of the reaction mixture was stabilized at the set point + 20° C. and dimethylamine gas was bubbled through the reaction medium comprising the mixture of sodium methoxide and diester for two hours (82 g of dimethylamine were added, 5% relative to the diester molar excess).
[0077] The temperature of the reaction medium is kept constant throughout the sparging period.
[0078] The temperature of the reaction medium is maintained at +20°...
Embodiment 2
[0088] Embodiment 2 sodium methylate joins in In IRIS / Dimethylamine Mixtures - Effect of Temperature
[0089] In a well-stirred 1-liter double-jacketed reactor equipped with mechanical stirring and pre-dried, dimethylamine (pure DMA, 83 g, 5% molar excess relative to the diester) was introduced and dissolved in 304 g of by Rhodia under the trade name In the mixture of 2-methylglutaric acid diester, 2-ethylsuccinic acid diester and adipate diester sold by IRIS.
[0090] The temperature of the reaction medium is stabilized at the desired set point (refer to Table 2 below), and a solution of sodium methoxide in methanol (50 wt % solution, weight 18.8 g) is poured into the In the reaction mixture of a mixture of amine and diester.
[0091] Once the pouring is complete, the temperature of the reaction medium is kept constant until more than 96% of the charged diester load has been consumed.
[0092] Excess dimethylamine was distilled under reduced pressure (about 200 mbars)...
Embodiment 3
[0101] Example 3 IRIS added to sodium methoxide / dimethylamine mixture - effect of temperature - over amount of DMA effects.
[0102] Dimethylamine in methanol (50 wt % solution, weight 188 g) and sodium methoxide in methanol (50 wt % solution, weight 18.8 g) were introduced into a well-stirred 1 liter double clamp provided with mechanical stirring and pre-dried in the reactor.
[0103] The temperature of the reaction medium is stabilized at the desired stated value, and within a defined period of time, 304 g of Rhodia under the trade name A mixture of 2-methylglutaric acid diester, 2-ethylsuccinic acid diester and adipate diester sold by IRIS was poured into a reaction mixture comprising dimethylamine and sodium methoxide.
[0104] Once the pouring is complete, the temperature of the reaction medium is kept constant until more than 96% of the charged diester load has been consumed.
[0105] Excess dimethylamine was distilled under reduced pressure (about 200 mbars) ...
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