Fluorinated Epoxide Ring Opening for Fluorohydrin Synthesis
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Solution Overview
Problem
Current methods do not effectively prepare fluorohydrins from fluorinated epoxides or produce fluorinated carbonate esters from fluorohydrins, which are valuable for applications in electronic devices and other industrial uses.
Innovation Solution
A method involving the reaction of fluorinated epoxides with nucleophilic fluorinating agents, such as HF or Olah's reagent, to form partially fluorinated alcohols, followed by the reaction of these alcohols with COX2 to produce fluorinated carbonate esters, which can be used as solvents and intermediates in battery manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fluorinated epoxides are reacted with nucleophilic fluorinating agents, then fluorohydrins can be prepared, but this reaction pathway was previously unknown and not described in existing literature
Solution Approach 1:
The patent applies preliminary action by first identifying and characterizing the ring-opening reaction of fluorinated epoxides with nucleophilic fluorinating agents before using it for practical fluorohydrin synthesis. The method establishes the reaction pathway, optimal conditions, and product characteristics in advance, making the previously unknown reaction reliable and reproducible for manufacturing fluorohydrins and fluorinated carbonate esters
2Productivity
If fluorohydrins are reacted with carboxylating agents, then fluorinated carbonate esters can be produced, but this reaction pathway and its products are unknown in existing art
Solution Approach 1:
The patent applies preliminary action by first establishing and characterizing the reaction between fluorohydrins and carboxylating agents before using it for production. The method defines the reaction conditions, product structure, and optimization parameters in advance, enabling controlled and precise manufacturing of fluorinated carbonate esters with desired properties
Solution Approach 2:
The patent applies parameter changes by systematically varying reaction conditions (such as reagent ratios, temperature, and catalysts) to optimize the carboxylation reaction of fluorohydrins. This enables precise control over product yield, purity, and molecular structure, achieving manufacturing precision for fluorinated carbonate esters
3Adaptability or versatility
If conventional methods are used to prepare fluorohydrins from epoxides, then general fluorohydrins can be obtained, but fluorinated epoxides cannot be effectively converted
Solution Approach 1:
The patent applies universality by developing a nucleophilic fluorinating agent-based ring-opening method that works for both conventional epoxides and fluorinated epoxides. The method uses nucleophilic fluorinating agents (such as HF, Olah's reagent) that can effectively open the epoxide ring across different substrate types, making the synthesis method universally applicable while maintaining ease of manufacture for fluorinated compounds
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 fluorinated alcohols and carbonate esters with specific physical and electrochemical properties, suitable for use in lithium ion batteries and other applications due to their stability and compatibility with battery components.
Implementation Method 1
reacting a fluorinated epoxide with a fluorinating agent... the ring opening of the fluorinated epoxide, 2,3-epoxy1,1,1-trifluoropropane (TFPO), with various nucleophiles
Implementation Method 2
the production of fluorinated carbonate esters from fluorohydrins and carboxylating agents is unknown as are the products of such reactions... reacting a fluorohydrin with COX2
Data Source
AI summary
A method for preparing a partially fluorinated alcohol. comprises reacting an epoxide: wherrein R1, R2, R3 and R4 are independently selected from the group comprising H, F, Cl, Br, I, CF3, alkyl, fluoroalkyl, haloalkyl with a fluorinating agent.