Isobutyric Ester Alpha-Substitution for Biodegradable Fragrance
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Solution Overview
Problem
There is a need for isobutyric ester compounds with a n-butyryloxy group at the α-position that can be used as fragrances and fragrance ingredients, offering a lower environmental impact and excellent biodegradability, as many existing fragrances are restricted due to toxicity and environmental concerns.
Innovation Solution
The synthesis of isobutyric ester compounds with a n-butyryloxy group at the α-position, specifically represented by Formula (1), where R is a linear, branched, or cyclic alkyl group with 1 to 4 carbon atoms, providing a novel fragrance with floral, fruity, and woody tones, and excellent diffusivity, which can be used alone or blended in fragrance compositions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing fragrance compounds are used, then fragrance performance is achieved, but environmental toxicity and poor biodegradability occur
Solution Approach 1:
The patent applies parameter changes by modifying the molecular structure of isobutyric ester compounds - specifically introducing a n-butyryloxy group at the α-position and varying alkyl groups (R = methyl, ethyl, n-propyl, isopropyl, n-butyl, or isobutyl). This structural parameter change results in compounds that maintain fragrance performance while achieving excellent biodegradability and reduced environmental toxicity compared to conventional fragrances
2Ease of manufacture
If conventional fragrance ingredients are used, then aromatic properties are achieved, but biodegradability is poor
Solution Approach 1:
The patent achieves improved biodegradability through parameter changes in molecular structure - specifically the introduction of the n-butyryloxy substituent at the α-position of the isobutyric ester core structure. This structural modification enables the compounds to maintain desirable aromatic properties (floral, fruity, woody tones) while being readily biodegradable, thus resolving the contradiction between fragrance quality and environmental breakdown
Data Source
AI summary
A compound, represented by Formula (1): wherein, in Formula (1), R represents a linear, branched, or cyclic alkyl group having 1 to 4 carbon atoms.