N,N-Dimethylacetamide synthesis
- Product Name:N,N-Dimethylacetamide
- CAS Number:127-19-5
- Molecular formula:C4H9NO
- Molecular Weight:87.12
124-40-3
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127-19-5
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Yield:127-19-5 98.5%
Reaction Conditions:
with self-zirconium modification of the nanoscale solid alkali catalyst in diethyl ether at 20; for 5 h;Inert atmosphere;
Steps:
1 Synthesis of N, N-dimethylacetamide process
In step 1, 60 g of dimethylamine was first subjected to infrared treatment in a nitrogen atmosphere for 3 h; Step 2 After adding the treated dimethylamine to the ether solution while adding 3 g of a homozygous zirconium-modified nanoscale solid base catalyst, 50 g of acetyl chloride was slowly added dropwise while magnetically stirring while opening the condensed reflux Device, control reaction temperature at 20 ° C, reaction 5 h; Step 3, the reaction after the end of the recovery of the product recovery, while recycling self-made nano-solid base catalyst,Sub-water washing; Step 4, followed by distillation, collecting fractions at 165 ° C, initially obtaining N, N-dimethylacetamide; Step 5, followed by recrystallization from an ethanol solution, followed by distillation to give N, N-dimethylacetamide;
References:
CN107011198,2017,A Location in patent:Paragraph 0008
201230-82-2
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127-19-5
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64-19-7
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