Photodegradation of methyl N,N'‐dimethyl‐N‐((C‐ methylcarbamoyl) ‐oxy) ‐1 ‐thiooxamimidate and nematicidal activity of its photoproducts

Abstract

The photolysis of methyl N.N'‐dimethyl‐N‐((C‐methylcarbamoyl)‐oxy)‐l‐thio‐oxamimidate 1 was conducted in solvents (methanol and hexane) and in the solid state as thin film under a 300 nm light. The compound underwent rapid and extensive degradation in both systems. The half lives were approximately 7 h in solution and 2 h in the solid state. Photoproducts were separated and tested for nematicidal activity against root knot nematode larvae and were found to be less toxic.

Key words:

• Photodegradation
• methyl N
• N'‐dimethyl‐N‐((C‐methylcarbamoyl)‐oxy)‐l‐thiooxamimidate
• photoproducts

Notes

Present address: Department of Nematology, Indian Agricultural Research, Institute, New Delhi‐110012, India.