Enantioselective Synthesis of Isoxazolecarboxamides and their Fungicidal Activity

Authors

  • W. Marek Go??biewski Institute of Industrial Organic Chemistry Annopol 6, 03-236 Warsaw, Poland

DOI:

https://doi.org/10.29356/jmcs.v59i2.30

Keywords:

Cycloaddition, isoxazole derivatives, regioselectivity, enantioselectivity, fungicides

Abstract

A series of new 3-substituted isoxazolecarboxamides have been prepared from aldehydes. The key step was a 1,3-dipolar cycloaddition reaction of nitrile oxides to a,b-unsaturated esters and amides. The cycloadditions to amides were mediated by chiral ligands and several products displayed excellent enantioselectivities. Some of the title compounds exhibited good fungicidal activities against Alternaria alternata, Botrytis cinerea, Fusarium culmorum, Phytophthora cactorum, and Rhizoctonia solani strains.

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Published

2017-10-12

Issue

Vol. 59 No. 2 (2015): Regular Issue

Section

Regular Articles

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