Pt Catalyst Iodine Ligands Aldehyde Yield
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Solution Overview
Problem
Existing hydroformylation processes using Pt(Xantphos)Cl2 do not achieve optimal yields for olefin conversion into aldehydes.
Innovation Solution
A process involving the presentation of an olefin, addition of a Pt compound capable of forming a complex, iodine compound, and subsequent supply of CO and H2, with heating, to enhance the conversion efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If Pt(Xantphos)Cl2 is used as catalyst, then hydroformylation can be performed, but the yield of aldehyde production is not optimal
Solution Approach 1:
The patent changes the chemical parameters of the catalyst system by replacing chloride ligands with iodide ligands in the platinum complex. This substitution of halogen atoms alters the electronic and steric properties of the catalyst, leading to improved activity and yield in hydroformylation reactions. The parameter change from Cl to I in the complex formula Pt(Xantphos)X2 directly addresses the yield optimization problem.
2Productivity
If a novel catalyst system is developed to increase yield, then aldehyde production efficiency improves, but the process complexity increases
Solution Approach 1:
The patent employs a simple, easily preparable catalyst system where iodine can be added directly to the reaction mixture or pre-formed as Ptl2. The use of common reagents like I2 and KI, along with the straightforward synthesis pathway, keeps the system simple despite improved performance. The catalyst components are readily available and the preparation steps are minimal, avoiding complex device or procedure requirements.
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 significantly increases the yield of aldehyde production from olefins, surpassing the efficiency of prior art methods.
Implementation Method 1
adding a compound according to the formula (I)... where the Pt compound is capable of forming a complex
Implementation Method 2
hydroformylation of olefins using Pt and iodine... a process for the hydroformylation of olefins
Implementation Method 3
with heating, to enhance the conversion efficiency
Data Source
AI summary
Method for the hydroformylation of olefins using Pt and iodine.