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Mitsui Toatsu Chemicals Inc
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Mitsui Toatsu Chemicals Inc
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Application filed by Mitsui Toatsu Chemicals IncfiledCriticalMitsui Toatsu Chemicals Inc
Priority to JP20655487ApriorityCriticalpatent/JPS6450834A/en
Publication of JPS6450834ApublicationCriticalpatent/JPS6450834A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
PURPOSE:To obtain the titled compound, such as a raw material for alkyd polymers, antifreeze, brake fluid, etc., by hydrogenating 2-chloropropionaldehyde in the presence of a heterogeneous hydrogenation catalyst in a hydroxy group- containing solvent. CONSTITUTION:2-Chloropropionaldehyde is hydrogenated in the presence of a heterogeneous hydrogenation catalyst, such as heterogeneous ruthenium, palladium or platinum catalyst, in a hydroxy group-containing solvent (e.g. methanol or acetic acid) to afford propylene glycol. The reaction is preferably carried out in the coexistence of an alkali.
JP20655487A1987-08-211987-08-21Production of propylene glycol
PendingJPS6450834A
(en)
Selective addition of unsaturated carboxylic acids to terminal acetylenes catalyzed by bis (. eta. 5-cyclooctadienyl) ruthenium (II)-tri-n-butylphosphine. A novel synthesis of enol esters