Abstract
Some 2′,3′,4′-trichlorophenyl chalcones [( E )-1-(2,3,4-trichlorophenyl)-3-(substituted phenyl)-2-propen-1-ones] have been synthesised using sulfated Titania catalyzed solvent-free aldol condensation between 2,3,4-trichloroacetophenone and substituted benzaldehydes. The purities of synthesised chalcones were checked by their analytical, physical and spectroscopic data reported in literature. The insect antifeedant activities of these chalcones have been studied using 4 th instar larvae Achoea Janata L by castor leaf disc bio-assay method. The chloro substituted chalcones shows significant insect antifeedant activity.
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Claims 1
Claim · model-written summary
Chloro-substituted chalcones had significant antifeedant activity in a castor leaf-disc assay against Achoea Janata larvae.
- Taxon
- castor
Ricinus communise1 - Treatment
- chloro substituted chalconese0
- Interactor
- Achoea Janata Le1pest
- Outcome
- insect antifeedant activitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The chloro substituted chalcones shows significant insect antifeedant activity.”
e1“Achoea Janata L by castor leaf disc bio-assay method”
The same questions in other papers
chloro group · pest · Ricinus communis (castor bean)Results agree
1 paper in the same direction as this paper
- positive
chalcones · pest · Ricinus communis (castor bean)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.