Preparation of propenone using copper sulfate or its hydrate
By using copper(II) sulfate and its hydrate as catalysts, propadienone can be prepared under strong acid-free conditions, which solves the safety risks and corrosion problems in the prior art and achieves the effect of efficient preparation of propadienone.
CN114907200BActive Publication Date: 2026-05-26DSM IP ASSETS BV
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DSM IP ASSETS BV
- Filing Date
- 2022-02-08
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing technologies use strong acids as catalysts in the preparation of propadienone, which poses safety risks and corrosion problems. There is a need to develop a method for the high-yield preparation of propadienone under conditions without strong acids.
Method used
Copper(II) sulfate and its hydrate were used as catalysts to prepare propadienone by reacting tertiary propargyl alcohol with enol ether in the presence of anhydrous or organic solvent.
Benefits of technology
A method for preparing propadienone with high conversion rate, high yield and high selectivity under strong acid-free conditions was achieved, avoiding safety risks and corrosion problems.
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Abstract
This invention relates to a method for preparing propadienone using a specific catalyst, which is CuSO4 or CuSO4 hydrate. The reaction provides propadienone in high yield and with high selectivity.
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