Cyclic Diketone Production Through Metal-Catalyzed Olefin Cleavage
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Solution Overview
Problem
Existing methods for producing macrocyclic compounds, such as muscenone, face challenges in terms of industrial suitability and efficiency, particularly due to the use of ozone or hydrogen peroxide, which are not economically viable or environmentally friendly.
Innovation Solution
A method involving oxidative cleavage of a bicyclic tetrasubstituted olefin compound using a metal catalyst containing vanadium, iron, or molybdenum, in the presence of an oxidant, to produce a compound represented by General Formula (I), which is a precursor for muscenone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ozone or potassium permanganate is used for oxidative cleavage, then the reaction can proceed, but the method is not industrially suitable due to safety and cost issues
Solution Approach 1:
A metal catalyst (containing vanadium, iron, or molybdenum) is introduced as an intermediary to facilitate the oxidative cleavage reaction using hydrogen peroxide. The catalyst enables the reaction to proceed effectively while allowing the use of safer, more cost-effective oxidants, thus resolving the contradiction between reaction effectiveness and industrial suitability.
Solution Approach 2:
The invention changes the reaction parameters by introducing a metal catalyst system that alters the reaction mechanism. This allows the use of hydrogen peroxide (a safer, cheaper oxidant) instead of ozone or potassium permanganate, while maintaining high reaction effectiveness through catalytic action. The catalyst changes the activation energy and reaction pathway to make the process industrially viable.
2Ease of manufacture
If hydrogen peroxide is used as oxidant, then cost and safety are improved, but the oxidative cleavage of tetrasubstituted olefin compounds does not proceed effectively without a catalyst
Solution Approach 1:
A metal catalyst serves as an intermediary that enables hydrogen peroxide to effectively cleave tetrasubstituted olefin bonds. The catalyst activates the hydrogen peroxide and facilitates the oxidation reaction, resolving the contradiction between using cost-effective oxidants and maintaining high reaction efficiency.
Solution Approach 2:
The metal catalyst system creates a strong oxidizing environment that accelerates the cleavage of tetrasubstituted olefin bonds. By combining hydrogen peroxide with metal catalysts (vanadium, iron, or molybdenum compounds), the system achieves oxidation power comparable to or exceeding traditional reagents like ozone, while maintaining cost and safety advantages.
3Reliability
If traditional oxidants like ozone are used, then oxidative cleavage can be achieved, but environmental friendliness and economic viability are compromised
Solution Approach 1:
The invention converts the potentially harmful ozone oxidation process into a beneficial green chemistry process by using hydrogen peroxide as the oxidant. Hydrogen peroxide decomposes into water and oxygen, eliminating harmful byproducts. The metal catalyst enables this conversion while maintaining oxidative cleavage effectiveness, thus converting a harmful process into an environmentally friendly one.
Solution Approach 2:
The metal catalyst acts as an intermediary that enables the use of environmentally benign hydrogen peroxide to achieve the same oxidative cleavage results traditionally obtained from ozone. The catalyst mediates between the mild oxidant and the recalcitrant tetrasubstituted olefin bond, achieving effective cleavage without environmental harm.
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 production of muscenone with improved industrial suitability and efficiency, using safer and more cost-effective oxidants like hydrogen peroxide, while maintaining high yield and quality.
Implementation Method 1
a method for producing a compound represented by General Formula (I), including a step of obtaining a compound represented by General Formula (I) through oxidative cleavage of a compound represented by General Formula (II) using an oxidant in the presence of a metal catalyst
Implementation Method 2
in the presence of a metal catalyst containing one or more metal elements selected from the group consisting of vanadium, iron, and molybdenum
Data Source
AI summary
A method for producing a compound represented by formula (I) through oxidative cleavage of a compound that is represented by formula (II) and that is a bicyclic 4-substituted olefin compound where formula -A1- represents an alkylene group that is optionally substituted, that optionally further includes an ether bond, an ester bond, a secondary amino group, a thioether group, or a combination thereof, and that has 2-6 carbon atoms, and formula -A2- represents an alkylene group that is optionally substituted, that optionally further includes an ether bond, an ester bond, a secondary amino group, a thioether group, or a combination thereof, and that has 4-10 carbon atoms.The method involves forming the compound represented by formula (I) through oxidative cleavage of a compound represented by formula (II) using an oxidizer in the presence of a metal catalyst including a metal element selected from vanadium, iron, and molybdenum.