Process for the production of 3-buten-1-ol
AssigneeEastman Chemical Company
InventorStephen Neal Falling
Life of this patent
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Abstract
Disclosed is a process for the continuous, semi-continuous or batch production of 3-buten-1-ol from 3,4-epoxy-1-butene wherein 3,4-epoxy-1-butene and formic acid are fed to a reaction zone having a catalyst solution comprising a palladium(0) compound, a tertiary phosphine, a trialkylamine and an organic solvent. Preferably in the operation of this invention, 3-buten-1-ol product and reaction side products serve as the organic solvent for the process. The preferred mode of operation is continuous addition of reactants to the reaction mixture with simultaneous, continuous distillation of a reaction product comprising 3-buten-1-ol.
Claims19
Process for the preparation of 3-buten-1-ol comprising:
- (1) feeding 3,4-epoxy-1-butene (EPB) and formic acid to a reaction zone containing a catalyst solution comprising a palladium(0) compound, a tertiary phosphine, a tertiary amine and an organic solvent, to form a reaction mixture, maintained at an elevated reaction temperature;
- and
- (2) distilling the contents of the reaction zone to remove a vapor comprising 3-buten-1-ol;
- wherein the organic solvent is selected from the group consisting of 3-buten-1-ol, an extraneous solvent having a boiling point of at least 130° C., or a mixture thereof.
Process for the continuous preparation of 3-buten-1-ol comprising:
- (1) continuously feeding EPB and formic acid to a reaction zone containing a catalyst solution comprising a palladium(0) compound, a tertiary phosphine, a tertiary amine and an organic solvent, to form a reaction mixture, maintained an elevated temperature;
- and
- (2) continuously distilling the contents of the reaction zone to remove a vapor comprising 3-buten-1-ol;
- wherein the organic solvent comprises 3-buten-1-ol, an extraneous solvent having a boiling point of at least 130° C., or a mixture thereof.
Process for the continuous preparation of 3-buten-1-ol comprisin:
- feeding EPB and formic acid to a reaction zone containing a catalyst solution comprising a palladium(0) compound, a tertiary phosphine, a tertiary amine and an organic solvent;
- maintaining the contents of the reaction zone at an elevated temperature;
- and
- distilling to remove a vapor comprising a crude 3-buten-1-ol reaction product,
- wherein the organic solvent is selected from the group consisting of 3-buten-1-ol, an extraneous solvent having a boiling point of at least 130° C., or a mixture thereof.
A batch process for the production of 3-buten-1-ol, which comprises:
- (1) contacting EPB and formic acid in a reaction zone in the presence of a catalyst solution comprising a palladium(0) compound, a tertiary phosphine, a tertiary amine and an organic solvent, to form a reaction mixture, maintained at elevated temperature;
- and
- (2) distilling the contents of the reaction zone to remove a vapor comprising 3-buten-1 -ol;
- wherein the organic solvent comprises 3-buten-1-ol, an extraneous solvent having a boiling point of at least 130° C., or a mixture thereof, and the process is carried out in the substantial absence of THF.
Process for the continuous preparation of 3-buten-1-ol, comprising:
- continuously feeding EPB and formic acid to a reaction zone containing a catalyst solution comprising a palladium(0) compound, a tertiary phosphine, a tertiary amine and an organic solvent, to form a reaction mixture, maintained under boiling conditions;
- and
- continuously removing a vapor comprising 3-buten-1-ol and carbon dioxide from the reaction zone;
- wherein the organic solvent comprises 3-buten-1-ol, an extraneous solvent having a boiling point of at least 130° C., or a mixture thereof.
Dependencies are inferred from the claim text.