1117-37-9Relevant articles and documents
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Niederhauser,A.,Neuenschwander,M.
, p. 1318 - 1330 (1973)
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De Benneville,Macartney
, p. 3725 (1950)
Biaryl and atropisomeric biaryl aldehyde synthesis by one-step, metal-free benzannulation of aryl enals and propiolates
Hu, Deqing,Wan, Jie-Ping,Yang, Lu
, p. 6773 - 6777 (2020)
A new method involving the benzannulation of aromatic enals and two alkyl propiolate molecules has been developed as a powerful route to biaryl aldehydes simply via the promotion of dimethyl amine. The benzannulation process in the absence of an oxidant additive tolerates successfully the formyl group in the enal component, leading to a straightforward one-step synthesis of biaryl and atropisomeric aldehydes. An enamine activation based on the aza-Michael addition of dimethyl amine to the propiolate and the amine elimination-based generation of cyclohexadiene intermediate constitute the major factors enabling the titled reactions. This journal is
Preparation method of ethyl 3-(N,N-dimethylamino)acrylate
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Paragraph 0027-0044, (2021/02/10)
The invention relates to a preparation method of ethyl 3-(N,N-dimethylamino)acrylate, which comprises the following steps: carrying out heating reaction on formic acid, ethyl acetate and dimethylamineto obtain ethyl 3-(N,N-dimethylamino)acrylate and water. The preparation method of the ethyl 3-(N,N-dimethylamino)acrylate is short in reaction route, high in yield and purity and low in safety risk.
Synthesis method for N,N-dimethylaminoethyl acrylate
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Paragraph 0018; 0019; 0020; 0021; 0022; 0023-0038, (2017/07/21)
The invention discloses a synthesis method for N,N-dimethylaminoethyl acrylate. The method includes the following steps that 1, raw material preparation is carried out, wherein ethyl acetate, carbon monoxide, dimethylamine carbonate and sodium ethoxide serve as raw material; 2, material blending is carried out, wherein the molar ratio of ethyl acetate to carbon monoxide to dimethylamine carbonate to sodium ethoxide is (3-4):(0.9-1.1):(1.0-1.30):(1.2-1.4); 3, ethyl acetate, dimethylamine carbonate and sodium ethoxide are added into a vessel, carbon monoxide is introduced into the vessel, the temperature in the kettle is controlled to be 45-50 DEG C at the pressure of 0.2-0.8 MPa, and a heat-preserved reaction is carried out for 10 h; 4, after the reaction is finished, reduced pressure distillation is carried out to distill off a solvent, and the distilled solvent is recycled; 5, water is added into the vessel, standing is carried out for layering, an oil phase enters a rectification system, and N,N-dimethylaminoethyl acrylate is obtained through rectification. The product synthesized with the method contains few impurities, the amount of wastewater is small, the water resource is saved, the yield is high and reaches 5%, and the content is increased to 99.5% or above from 98%.
