N-VINYLFORMAMIDE synthesis
- Product Name:N-VINYLFORMAMIDE
- CAS Number:13162-05-5
- Molecular formula:C3H5NO
- Molecular Weight:71.08
693-06-1
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Yield:13162-05-5 75.8%
Reaction Conditions:
with acetic anhydride at 35 - 60; for 13.5 h;Inert atmosphere;Time;
Steps:
1; 1
Take 45g (1.0mol) of formamide, add 0.9g of composite basic catalyst (including 0.7g of potassium carbonate and 0.2g of triethylamine). After deoxygenating by nitrogen, the temperature is reduced to 10, and then 150g (3.4mol) of acetaldehyde is added dropwise , Reacted at 10 for 3h to obtain hydroxyethyl formamide. Then add 153g (1.5mol) of acetic anhydride, under the protection of nitrogen, continue to react for 10h in a closed reaction flask at a reaction temperature of 35 to obtain ester compounds. The ester compounds are cracked at 60 for 3.5h to obtain N- The mixture of vinylformamide is rectified under reduced pressure at 100-150Pa to obtain N-vinylformamide. After testing, the yield of N-vinylformamide was 75.8% and the purity was 96.2%.
References:
Chinese Academy Of Sciences Changchun Applied Chemistry Institute;Wang Pixin;Tan Ying;Xu Kun;Chi Hui;Bai Yungang;Zhang Wende CN112047854, 2020, A Location in patent:Paragraph 0065-0066; 0071-0072
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