2134-29-4Relevant articles and documents
Synthesis method of 3-hydroxypropionaldehyde
-
Paragraph 0075; 0076; 0077, (2020/05/14)
The invention relates to a synthesis method of 3-hydroxypropionaldehyde, which mainly solves the problem of difficulty in separation of a catalyst of a homogeneous system in the prior art. The synthesis method of 3-hydroxypropionaldehyde comprises the following steps: i, adding a cobalt catalyst and a cocatalyst into a solvent, and heating for pretreatment in a synthesis gas atmosphere; and ii, after the catalyst pretreatment is finished, cooling, releasing the pressure, adding ethylene oxide and synthesis gas, and reacting to obtain the 3-hydroxypropionaldehyde, so that the technical problemis better solved, and the method can be applied to industrial production of the 3-hydroxypropionaldehyde.
Method for preparing 3-hydroxypropionaldehyde by hydrating acrolein
-
Paragraph 0050-0059, (2020/12/31)
The invention relates to a method for preparing 3-hydroxy propionaldehyde by hydrating acrolein. The acrolein is homogeneously catalyzed under the action of a N-heterocyclic carboxylic acid ionic liquid to prepare 3-hydroxy propionaldehyde, wherein the hydration reaction liquid is subjected to aqueous two-phase extraction to recover the ionic liquid catalyst for cyclic utilization. According to the invention, the method is simple to operate and stable in process, the catalyst has very high reaction activity and very good selectivity, and the problems of separation of a homogeneous catalyst andinstability and easy deactivation of a solid catalyst in the hydration process are effectively solved.
Preparation method of 3-hydroxy-propionaldehyde
-
Paragraph 0046; 0049, (2017/08/29)
The invention relates to a preparation method of 3-hydroxy-propionaldehyde. The preparation method mainly solves the problem that a homogeneous system catalyst is difficult to recycle in the prior art. The preparation method of the 3-hydroxy-propionaldehyde comprises the following steps: a) performing a complexing reaction in a solvent on ligand and cobalt carbonyl so as to obtain a catalyst solution; and b) adding oxacyclopropane and synthesis gas, and reacting to obtain the 3-hydroxy-propionaldehyde, wherein the ligand is of a following structure, X is selected form one of an oxygen atom and a sulfur atom, and R is selected from one of a cyclo group, an aryl group or a substituted aryl group. Through the technical scheme, the technical problem is preferably solved, and the preparation method can be used in industrial production of the 3-hydroxy-propionaldehyde.