Ester Formulation for Ambient-Stable Arylsulfonylpropenenitriles
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Solution Overview
Problem
Existing arylsulfonylpropenenitrile compounds are unstable at ambient temperatures, necessitating storage at sub-freezing conditions, which complicates long-term storage and transportation, and there is a need for a stable and environmentally benign formulation suitable for various industrial processes.
Innovation Solution
A formulation comprising aliphatic and cyclic esters as organic solvents with arylsulfonylpropenenitrile compounds, ensuring stability and solubility, allowing storage at ambient temperatures with minimal degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If arylsulfonylpropenenitrile is stored as a solid at ambient temperature, then storage and transportation become simpler, but the compound degrades due to instability
Solution Approach 1:
The patent changes the physical state parameter from solid to liquid solution form, and modifies the chemical environment by selecting specific esters as solvents. This transforms the unstable solid compound into a stable liquid formulation, enabling ambient temperature storage while maintaining compound integrity through the protective solvent environment.
Solution Approach 2:
The ester solvent acts as an intermediary medium between the arylsulfonylpropenenitrile compound and the storage environment. The solvent stabilizes the compound molecules, preventing degradation reactions that would occur in solid state at ambient temperature, thus mediating the interaction between the active ingredient and external conditions.
2Reliability
If arylsulfonylpropenenitrile is stored at sub-freezing temperatures, then compound stability is maintained, but storage and transportation complexity increases
Solution Approach 1:
The patent changes the temperature parameter from sub-freezing to ambient range by simultaneously changing the physical state from solid to liquid solution. The ester-based formulation allows the compound to remain stable at higher temperatures, eliminating the need for refrigerated storage infrastructure and simplifying the overall storage system.
3Quantity of substance
If conventional solvents are used for formulation, then compound solubility may be improved, but environmental benignity and sustainability are compromised
Solution Approach 1:
The patent changes the chemical composition parameter by selecting esters (such as ethyl acetate, isopropyl acetate, butyl acetate) as solvents. These esters provide adequate solubility for the arylsulfonylpropenenitrile compound while having favorable environmental profiles including low toxicity, biodegradability, and reduced carbon footprint compared to conventional organic solvents.
Solution Approach 2:
The patent converts the potential harm of requiring stable solvent systems into a benefit by using esters that are both effective solvents and environmentally benign. The ester solvents naturally provide the needed solubility and stability while their inherent chemical properties (ester functional group) ensure biodegradability and reduced environmental persistence.
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 formulation maintains at least 90% of the arylsulfonylpropenenitrile compound's concentration for up to 6 months at 25°C, providing stability and suitability for diverse industrial applications.
Implementation Method 1
A formulation comprising aliphatic and cyclic esters as organic solvents with arylsulfonylpropenenitrile compounds, ensuring stability and solubility
Data Source
AI summary
The present invention relates to a stable formulation comprising at least one organic solvent selected from a group consisting of aliphatic esters and cyclic esters, and a compound of Formula (I).