Norbornane Fragrance Compositions for Predictable Aroma Variation
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Solution Overview
Problem
The art of flavor and fragrance prediction is in its infancy, and small structural changes in molecules can have profound and unexpected effects on aroma or fragrance profiles, making it difficult to identify effective compounds for enhancing scents and flavors in consumer products.
Innovation Solution
The development of bicyclo[2.2.1]heptane and bicyclo[2.2.1]heptene derivatives with specific functional groups and configurations, which exhibit unique and favorable aromas, are used as fragrance and flavor ingredients in compositions for consumer products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If small structural changes are made to molecules (such as lengthening or shortening functional groups by one carbon atom), then the aroma or fragrance profile is profoundly affected, but the predictability of these effects becomes extremely difficult
Solution Approach 1:
The patent systematically explores how changing molecular parameters (functional group length, substituent types, stereochemistry) affects aroma properties. By varying these parameters across multiple norbornane and norbornene derivatives, the invention demonstrates both the sensitivity of aroma to structural changes and establishes patterns that improve predictability.
Solution Approach 2:
The patent creates composite fragrance compositions by combining multiple norbornane and norbornene derivatives with different structural modifications. These composite materials exhibit synergistic aroma effects that are greater than individual components, while the systematic approach to combining them provides predictive frameworks for composition design.
2Adaptability or versatility
If new norbornane and norbornene derivatives are synthesized with specific functional groups, then unique and favorable aromas are achieved, but the complexity of synthesis and identification increases
Solution Approach 1:
The patent divides the complex molecule design into modular segments: the norbornane/norbornene core structure and various functional group substituents. This segmentation allows independent optimization of each component's contribution to aroma while simplifying the overall synthesis process through standardized building blocks.
Solution Approach 2:
The patent employs intermediate compounds in the synthesis pathway that facilitate the transformation from simple precursors to the final aromatic norbornane/norbornene derivatives. These intermediaries simplify the overall synthesis process by breaking down complex transformations into manageable steps with well-defined conditions.
3Reliability
If conventional flavor and fragrance compounds are used, then some aromatic effects are achieved, but the ability to create novel and unexpected olfactive qualities is limited
Solution Approach 1:
Instead of starting with known aromatic compounds and modifying them slightly, the patent inverts the approach by starting with the norbornane/norbornene skeleton and systematically introducing functional groups to create novel aromas. This inversion enables discovery of unexpected olfactive qualities while maintaining reliable synthesis methods.
Solution Approach 2:
The patent applies extensive parameter changes to the norbornane/norbornene structure, including different functional groups (alcohols, aldehydes, ketones, acids), different positions of substitution, and stereochemical variations. This systematic parameter exploration generates novel olfactive qualities while the structured approach ensures reliable reproduction and identification of each compound's aromatic profile.
Data Source
AI summary
The present application relates to bicyclo[2.2.1]heptane and bicyclo[2.2.1]heptene derivatives, methods of making them, and methods of using them as flavor and fragrance ingredients in food, cosmetic, pharmaceutical, consumer, and other compositions and products.