Pt-Phenophosphazine Complex Halogen Ligands Hydroformylation

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Solution Overview

Problem

Current catalysts for hydroformylation reactions do not achieve optimal yields, necessitating the development of a more effective complex for enhancing reaction efficiency.

Innovation Solution

A Pt-phenophosphazine complex incorporating iodine or bromine ligands, specifically designed to catalyze hydroformylation reactions, where the ligands are tailored with specific alkyl, aryl, and heteroaryl groups to optimize catalytic performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional catalysts are used for hydroformylation reactions, then the reaction can proceed, but the yield and selectivity are not optimal

Engineering Contradiction:
ImproveyieldVSAvoidselectivity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent changes the chemical parameters of the catalyst by using Pt-phenophosphazine complexes with specific halogen ligands (iodine or bromine) instead of conventional catalysts. This parameter change in the catalyst composition directly improves both the yield and selectivity of the hydroformylation reaction, resolving the contradiction between productivity and reliability.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention creates a composite catalyst system combining platinum metal center, phenophosphazine ligand framework, and halogen ligands (iodine/bromine). This composite structure synergistically enhances both the activity (yield) and selectivity of the catalyst, addressing the technical contradiction by integrating multiple functional components into a single catalytic system.

Inventive Principle:
Principle #40Composite materials

2Ease of manufacture

If the catalyst structure is simplified, then the ease of manufacture improves, but the catalytic performance (yield and selectivity) decreases

Engineering Contradiction:
Improvecatalyst preparationVSAvoidreaction yield
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The catalyst is designed with a segmented structure where the phenophosphazine ligand provides a stable framework and the halogen ligands (iodine/bromine) provide specific catalytic functionality. This segmentation allows each component to be optimized independently while maintaining overall catalytic performance, enabling both ease of manufacture through modular design and high productivity through specialized functionality.

Inventive Principle:
Principle #1Segmentation

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 complex significantly increases the yield and selectivity of hydroformylation reactions, as demonstrated by experimental results showing high yields with varying halogen ligands, particularly with iodine and bromine, outperforming other halogens like chlorine.

Implementation Method 1

the use of a complex of formula (II) for catalyzing a hydroformylation reaction

Methodology Applied
Scientific EffectCatalysis: Catalysis

Data Source

PatentEP4197996B1Pt-phenophosphazine-iodine complex and pt-phenophosphazine bromine complex
Publication Date: 2024.07.24 EVONIK OXENO GMBH & CO KG
  • EP4197996B1 patent drawing
  • EP4197996B1 patent drawing
  • EP4197996B1 patent drawing

AI summary

Pt-phenophosphazine-iodine complex and Pt-phenophosphazine-bromine complex, and their use for catalyzing a hydroformylation reaction.