Fungicidal Composition Blends for Broader Crop Disease Control
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Solution Overview
Problem
Existing fungicidal compositions do not adequately address the needs of agricultural practice in terms of biological activity, spectrum of activity, safety profile, physico-chemical properties, biodegradability, crop tolerance, and environmental impact, necessitating the development of new compounds and compositions with improved properties for controlling phytopathogenic fungi.
Innovation Solution
A fungicidal composition comprising a mixture of components (A) and (B), where component (A) is a compound of formula (I) and component (B) is selected from a group of known fungicides, applied in various weight ratios to enhance biological activity, safety, and reduce environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing fungicidal compounds are used, then some level of fungal control is achieved, but biological activity and spectrum of activity are insufficient
Solution Approach 1:
The patent combines two different fungicidal compounds (component A from formula I and component B from the group of known fungicides) into a single composition. This merging of compounds with different modes of action and spectra of activity creates a synergistic effect that broadens the overall spectrum of activity while maintaining high biological activity against phytopathogenic fungi.
Solution Approach 2:
The invention creates a composite fungicidal composition by combining two different chemical compounds with complementary properties. Component A provides certain biological activities and spectral coverage, while component B contributes different spectral coverage and modes of action, resulting in a composite material with enhanced and broadened fungal control capabilities.
2Reliability
If existing fungicidal compositions are used, then fungal control is achieved, but safety profile and environmental impact are inadequate
Solution Approach 1:
The patent modifies the chemical composition parameters by selecting specific compounds from defined structural classes (formula I for component A and the specified group for component B). This parameter change in composition leads to improved safety profiles and reduced environmental impact while maintaining effective fungal control, as the selected compounds have favorable toxicological and environmental characteristics.
3Reliability
If existing fungicides are applied, then some disease control is achieved, but application rate and number of applications must be increased
Solution Approach 1:
By merging two fungicidal compounds with complementary modes of action and spectral activities, the composition achieves superior effective control at lower individual application rates. The synergistic interaction between the two components allows for reduced total quantity of substance applied while maintaining or enhancing disease control effectiveness.
Data Source
AI summary
A process for the preparation of a compound of formula (I), said process includes reacting a compound of formula (V) with a trifluoroacetyl halide at temperatures between 0° C. and 75° C.: where R1 and R2 are hydrogen; R3 is ethyl, or methoxy; Z is R4 or R5, where R4 is iso-propyl, 1-methoxyethyl, (difluoromethoxy)methyl or cyclopropyl; and R5 is —NR6R7, wherein R6 is hydrogen; and R7 is methyl, where the trifluoroacetyl halide is selected from trifluoroacetyl fluoride, trifluoroacetyl chloride or trifluoroacetyl bromide; wherein said process is carried out in the presence of a base; and where the base is selected from pyridine or 4-dimethylaminopyridine.