Iridium Catalyst Complex for Selective Hydrocarbon Oxidation
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Solution Overview
Problem
Current methods for oxidizing alkanes and aromatics to produce alcohols, ketones, and aldehydes are inefficient and lack effective catalysts, limiting their utility and environmental benefits in the chemical industry.
Innovation Solution
The use of an iridium metal catalyst complex coordinated with benzimidazolyl-containing ligands for selectively oxidizing alkyl-containing molecules and aromatics with an oxygen-containing gas, allowing for the production of alcohols, ketones, and aldehydes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional oxidation catalysts (such as NHPI with cobalt or manganese co-catalysts) are used to oxidize hydrocarbons, then the oxidation reaction can proceed, but the conversion efficiency is extremely low and the process lacks selectivity
Solution Approach 1:
The patent changes the fundamental parameter of the catalyst system by replacing conventional NHPI-based catalysts with iridium metal complexes coordinated with specific nitrogen-containing ligands (such as pyridine, imidazole, triazole, or their derivatives). This parameter change in catalyst composition and structure enables both high conversion efficiency and good selectivity for oxidizing alkanes and aromatics to alcohols, ketones, and aldehydes.
2Ease of manufacture
If conventional oxidation methods are used, then oxidation products can be obtained, but the process lacks utility and environmental benefits for the chemical industry
Solution Approach 1:
The patent employs iridium metal complexes with specifically designed nitrogen-containing ligands as catalysts, representing a significant parameter change from conventional catalyst systems. This new catalyst system achieves both industrial utility and environmental benefits by enabling efficient oxidation of hydrocarbons with oxygen under milder conditions, improving atom economy and reducing waste compared to traditional methods.
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 process achieves effective and selective oxidation of alkanes and aromatics, producing valuable organic compounds with good selectivity and efficiency, addressing the limitations of existing technologies.
Implementation Method 1
oxidizing alkanes and aromatics using as a catalyst certain iridium complexes
Implementation Method 2
oxidation of saturated hydrocarbons e.g., alkanes, particularly cycloalkanes, with active oxygen such as molecular oxygen or air to produce the corresponding alcohol, ketone and/or acid reaction product(s)
Data Source
AI summary
Provided is a process for effectively and efficiently oxidizing alkyl-containing molecules with the use of an oxygen-containing gas. An iridium metal catalyst complex with the iridium being coordinated with the nitrogen atoms of a benzimidazolyl-containing ligand is used as the catalyst. The process generates alcohols, ketones and aldehydes directly from alkyl-containing molecules and/or aromatic molecules.