Morin Synthesis via One-Pot Aldol Condensation and Cyclization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current synthesis processes for high-purity morin and its derivatives are complex and yield inefficiently, with multiple steps contributing to high manufacturing costs and contamination from impurities like kaempferol, which affect the activity and purity of the final product.
Innovation Solution
A revised synthesis process that swaps the acetylation and alkylation steps, using readily available starting materials and optimizing reaction conditions to achieve a one-step conversion of intermediates, thereby simplifying the process and increasing the yield of high-purity morin, while avoiding impurities like kaempferol.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple-step synthesis process is used for morin production, then purity can be achieved, but the number of process steps increases and yield decreases
Solution Approach 1:
The patent combines multiple separate synthesis steps into a one-pot multi-component reaction where all reactants (acetophenone derivative, aldehyde derivative, and oxidant) are combined in a single reaction vessel to directly produce morin in one step, eliminating the need for sequential isolation and purification steps while maintaining high purity
Solution Approach 2:
The synthesis approach segments the reaction into distinct functional components (nucleophilic acetophenone derivative, electrophilic aldehyde derivative, and oxidant system) that can be independently optimized and combined, allowing for simplified one-pot synthesis while maintaining control over each transformation step
2Manufacturing precision
If multiple-step synthesis process is used for morin production, then purity can be achieved, but production time and cost increase
Solution Approach 1:
The one-pot synthesis method maintains continuous reaction progress without interrupting for intermediate isolation, allowing the reaction to proceed through all transformation steps (condensation, cyclization, oxidation) in an uninterrupted sequence, thereby significantly reducing total production time while maintaining high purity through controlled reaction conditions
Solution Approach 2:
The reactants are pre-selected and pre-mixed in appropriate ratios before the reaction begins, with all necessary components for the complete transformation already present in the reaction mixture, eliminating the need for sequential addition steps and intermediate workups
3Quantity of substance
If conventional synthesis routes are used, then morin can be produced, but impurities like kaempferol are formed
Solution Approach 1:
The patent employs specific parameter optimizations including controlling pH (using buffered conditions or weakly basic catalysts), temperature (moderate heating), and oxidant selection (mild oxidants like FeCl3 or CuCl2) to favor the formation of morin over kaempferol, and using specific reactant structures with hydroxyl groups at positions that direct oxidation to the desired product
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
The process results in a significantly higher yield and purity of morin, improving its activity by 22.35% and reducing impurities, leading to enhanced performance in applications such as electroplating, with a purity of over 95% and reduced production costs.
Implementation Method 1
This involves the aldol condensation of the acetophenone derivative 1-(2-hydroxy-4,6-dimethoxyphenyl)ethan-1-one with 2,4-dimethoxybenzaldehyde
Implementation Method 2
reacting the acetophenone of formula (6) with a compound of the following formula (7) to form a flavonol of the following formula (8)
Implementation Method 3
removal of the oxygen-bound protecting groups by dealkylation, in particular demethylation, of the flavonol of formula (8) to obtain the compound of formula (1)
Data Source
AI summary
The present invention relates to a process for the direct production of morin derivatives and high-purity morin of formula (1) which comprises the reaction of a dimethoxyacetophenone with a dimethoxybenzaldehyde to form a flavonol.