2163-42-0Relevant articles and documents
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Bailey,W.J. et al.
, p. 1724 - 1725 (1963)
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Method for preparing 2-methyl-1, 3-propylene glycol from isobutene
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Paragraph 0054-0055; 0061; 0063; 0079; 0082-0083; 0086-0087;, (2021/02/10)
The invention discloses a method for preparing 2-methyl-1, 3-propylene glycol from isobutene. The method comprises the following steps: mixing isobutene with acetic acid and oxygen, and carrying out an oxyacetylation reaction under the action of a supported palladium-molybdenum catalyst to obtain 2-methylene propane-1, 3-diacetoxy, namely a compound (C); carrying out transesterification on the compound (C) under the action of a basic catalyst to obtain 2-methylene-1, 3-propylene glycol, namely a compound (D); and carrying out hydrogenation reaction on the compound (D) to obtain the 2-methyl-1,3-propylene glycol. According to the method, the 2-methyl-1, 3-propylene glycol can be generated with high selectivity, and the whole process is high in atom utilization rate, environmentally friendly and suitable for large-scale industrial application.
Hydroformylation process
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Page/Page column 7-8, (2010/09/09)
A catalyst, useful for the hydroformylation of allyl alcohol, is described. The catalyst comprises a rhodium complex and a 6-bis(3,5-dialkylphenyl)phosphino-N-pivaloyl-2-aminopyridine or a 3-bis(3,5-dialkylphenyl)phosphino-2H-isoquinolin-1-one. The invention also includes a process for the production of 4-hydroxybutyraldehyde comprising reacting allyl alcohol with a mixture of carbon monoxide and hydrogen in the presence of a solvent and the catalyst. The process gives a high ratio of the linear product 4-hydroxybutyraldehyde to the branched co-product 3-hydroxy-2-methylpropionaldehyde.