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Synthesis and Antinemic Activity of 4-(Benzylideneamino)-3-Mercapto-5-Pyridin- 2-yl-4H-1,2,4-Triazoles

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Title Synthesis and Antinemic Activity of 4-(Benzylideneamino)-3-Mercapto-5-Pyridin- 2-yl-4H-1,2,4-Triazoles
M Sc
 
Creator Abhishek Mandal
 
Contributor R. L. Gupta
 
Subject nematicides, acidity, biological phenomena, organic compounds, heterocyclic compounds, vegetative propagation, carbon, vegetables, rotylenchulus reniformis, meloidogyne incognita
 
Description T-8601
Twenty Schiff bases, 4-(Benzylideneamino)-3-mercapto-5-pyridin-2-yl-4H-1,2,4-triazoles, derived from picolinic acid, were screened for their anti-nemic activity under laboratory conditions for a period of 72 h. The compounds were tested at five different doses along with reference nematicide, Triazophos, TRIUMPH® (40% EC) against important plant pathogenic nematodes, Meloidogyne incognita and Rotylenchulus reniformis. Significantly high anti-nemic activities were observed with many of the title compounds. Among all the synthesized compounds, 4-(4-Methoxybenzylidenamino)-3-mercapto-5-pyridin-2-yl-4H-1,2,4-triazole (GM13) exhibited the highest nematicidal activity (LC50=218 ppm, M. incognita and 174 ppm, R. reniformis), comparable to triazophos.. The other potent compounds that emerged from the series were 4-(3-Methylbenzylidenamino)-3-mercapto-5-pyridin-2-yl-4H-1,2,4-triazole (GM9) 4-(2-Methoxybenzylidenamino)-3-mercapto-5-pyridin-2-yl-4H-1,2,4-triazole (GM11) and 4-(3-Methoxybenzylidenamino)-3-mercapto-5-pyridin-2-yl-4H-1,2,4-triazole (GM12).
 
Date 2016-09-23T19:09:04Z
2016-09-23T19:09:04Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/78686
 
Format application/pdf
 
Publisher IARI, DIVISION OF AGRICULTURAL CHEMICALS