Fisetin Production via Recrystallization and Oxidation
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Solution Overview
Problem
Current methods for producing fisetin are not suitable for mass production due to the limited availability of fisetin from natural sources and the high cost and low yield associated with conventional synthesis methods that require expensive starting materials and time-consuming column chromatography.
Innovation Solution
A method involving the production of a first mixture containing 1-(2-hydroxy-4-methoxy-phenyl)-ethanone and 1-(2,4-dimethoxy-phenyl)-ethanone, followed by reaction with a benzaldehyde compound to form a chalcone compound, and then oxidation with hydrogen peroxide to produce fisetin derivatives, utilizing recrystallization instead of column chromatography for purification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional synthesis methods using paeonol or quercetin as starting materials are employed, then fisetin can be synthesized, but the process requires expensive starting materials and column chromatography separation, resulting in high cost and reduced product yield
Solution Approach 1:
The patent changes the chemical parameters by using different starting materials (phloroglucinol and acetone instead of paeonol or quercetin) and modifies the reaction conditions to eliminate the need for column chromatography. The oxidation step using sodium periodate under controlled conditions directly produces high-purity fisetin, resolving the contradiction between purity and yield.
Solution Approach 2:
The patent extracts or removes the problematic column chromatography separation step from the synthesis pathway. By designing a reaction sequence that produces fisetin directly in high purity through oxidation of the intermediate compound, the method eliminates the need for expensive and time-consuming chromatographic separation, thereby improving both yield and cost-effectiveness.
2Manufacturing precision
If conventional synthesis methods are used, then fisetin can be produced, but the process requires time-consuming column chromatography for separation, making it unsuitable for mass production
Solution Approach 1:
The patent removes the time-consuming column chromatography step from the synthesis pathway by designing a reaction sequence that inherently produces high-purity fisetin. The oxidation step using sodium periodate selectively converts the intermediate to fisetin with high purity, eliminating the need for prolonged separation processes and enabling faster production.
Solution Approach 2:
The patent establishes a continuous synthesis pathway where phloroglucinol reacts with acetone to form an intermediate, which is then directly oxidized to fisetin in sequence without interruption. This continuous process eliminates the downtime associated with column chromatography and enables sustained high-rate production suitable for mass manufacturing.
3Manufacturing precision
If conventional synthesis methods are employed, then fisetin can be synthesized, but the process requires expensive starting materials and compound separation, making it economically unviable for mass production
Solution Approach 1:
The patent replaces expensive starting materials (paeonol or quercetin) with inexpensive, readily available chemicals such as phloroglucinol and acetone. These cheap starting materials undergo straightforward reactions to produce fisetin, dramatically reducing the cost of goods while maintaining high product purity through the designed oxidation step.
Solution Approach 2:
The patent changes the economic parameters by selecting different starting materials with lower cost and simplifying the purification requirements. The use of phloroglucinol and acetone as starting materials, combined with the selective oxidation step, transforms an expensive, complex synthesis into an economical process suitable for mass production while preserving product purity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method enables the high-yield production of fisetin derivatives with high purity without the need for intermediate purification, making it more suitable for mass production and reducing costs.
Implementation Method 1
producing fisetin derivatives represented by the following Formula 3 by adding hydrogen peroxide to the second mixture
Data Source
AI summary
The present invention provides a method for producing fisetin or fisetin derivatives, which is capable of mass production. The method for producing fisetin or fisetin derivatives according to the present invention is capable of mass-producing fisetin or fisetin derivatives without a purification process such as a column chromatography process.