34846-90-7Relevant articles and documents
Research and development of the catalytic oxidation of methylacrylate to 3,3-dimethoxy methyl propionate
Tanaka, Yoshiyuki,Takahara, Jun P.,Lempers, Hans E.B.
, p. 548 - 554 (2009)
A selective synthesis of 3,3-dimethoxy methyl propionate has been developed using a green approach, in which the key step is a palladium-catalyzed oxidation of methylacrylate in methanol using oxygen as oxidant. The relationship between several reaction p
Preparation method of methyl 3-methoxyacrylate
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Paragraph 0086-0112, (2020/06/05)
The invention discloses a preparation method of methyl 3-methoxyacrylate. The preparation method comprises the steps: taking saturated monocarboxylic ester as a raw material and saturated carboxylic ester as an auxiliary material, and introducing formyl by utilizing methyl formate under the action of a catalyst; carrying out aldol condensation reaction with methanol under the condition that the ionic liquid is used as a catalyst, to obtain methyl 3,3-dimethoxypropionate; after the reaction is completed, separating methanol under reduced pressure, after separation is completed, increasing the temperature to 80-150 DEG C, carrying out an elimination reaction to remove one molecule of methanol on methyl 3,3-dimethoxypropionate, and thus obtaining methyl 3-methoxyacrylate, wherein methyl formate can be replaced with CO, and the raw material cost is lower. The method has the advantages of simple operation, easily available raw materials, high conversion rate, safety, environmental protection and low cost, and can realize industrial production.
Method for preparing E-alkoxyacrylate through one-pot synthesis technology
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Paragraph 0044; 0050; 0054; 0058; 0062; 0063; 0066; 0070, (2018/07/06)
The invention discloses a method for preparing E-alkoxyacrylate through a one-pot synthesis technology. The method comprises the following steps: S1, carrying out a Friedel-Crafts reaction on alkenylether and oxalyl chloride; S2, decarboxylating a Friedel-Crafts reaction product obtained in step S1 to obtain alkenyl acyl chloride; and S3, esterifying the alkenyl acyl chloride to obtain the E-alkoxyacrylate. The alkenyl ether and oxalyl chloride undergo the Friedel-Crafts reaction at a low temperature under solvent-free and metal catalyst-free conditions, the Friedel-Crafts reaction product undergoes heating decarboxylation to obtain the alkenyl acyl chloride, and the alkenyl acyl chloride is esterified to obtain the E-alkoxyacrylate, so precious metal catalysts and a lot of solvents are not used in the whole technologic route, and severely toxic phosgene and expensive initial raw materials are avoided, thereby the technologic route has the cost advantage in industrial amplified production.