2134-29-4Relevant articles and documents
Method for preparing 3-hydroxypropionaldehyde by hydrating acrolein
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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.
Synthesis method of 3-hydroxypropionaldehyde
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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.
Micellar effect on hetero-aromatic nitrogen base promoted chromic acid oxidation of 1.3-propanediol in aqueous media at room temperature
Malik, Susanta,Saha, Debabrata,Mondal, Monohar Hossain,Sar, Pintu,Ghosh, Aniruddha,Mahali, Kalachand,Saha, Bidyut
, p. 207 - 216 (2016/12/06)
Surfactants are classified on the basis of the nature of the hydrophilic groups. Surfactant micelle represents a tiny template or nanoreactor which is generally used for preparing nano-structured materials of desired sizes and shapes with required functionalities. In this present investigation chromic acid oxidation of 1.3-propanediol (1.3-PDO) to 3-hydroxy propionaldehyde (3-HPA) was carried out by using four representative promoters: picolinic acid (PA), 2.3-pyridine dicarboxylic acid (2.3 diPA), 2.2′-bipyridine (bipy) and 1.10-phenanthroline (phen) in presence and absence of surfactants sodium dodecylsulphate (SDS), N-cetylpyridinium chloride (CPC) and Triton-X-100 (TX-100). Reactions were performed under pseudo-first-order condition: [1.3-PDO]T ? [Cr(VI)]T in aqueous media at 30 °C temperature. Different combinations were performed to select the suitable combination of promoter and micellar catalyst for this oxidation. Based on the kinetic results, combination of TX-100 and phen was found to be the most suitable one for this oxidation. The mechanisms of both unpromoted and promoted reaction paths were proposed. The product was confirmed by 2.4-DNP test followed by FTIR spectroscopy of the hydrazone derivative.