Alkylxanthates and use of alkylxanthates in the integrated pest management
AssigneeCouncil of Scientific and Industrial Research
InventorsJanapala Venkateswara Rao, Yenamandra Venkateswarlu, Kondapuram Vijaya Raghavan
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Abstract
This invention relates to novel alkylxanthates of formulae 1 to 3 and use of alkylxanthates of formulae 1 to 6 in the integrated pest management, more specifically alkyl xanthates are used as insect growth regulators for pest management in agricultural fields no or less environmental impact.
Claims28
Compounds of alkylxanthates namely
- (i) methylene Bis (tetrahydrofurfuryl xanthate)
- (ii) m-Fluorobenzyl n-butylxanthate and
- (iii) m-Fluorobenzyl isobutylxanthate having the structural formulae (i), (ii) and (iii) as shown below:
- for use in agricultural applications.
A method for regulating insect growth comprising:
- applying an alkylxanthate analog selected from the compounds having the structural formulas as set forth below:
A method for inhibiting insect feeding comprising:
- applying an alkylxanthate analog to leaves.
A process for the preparation of analogues of alkyl xanthates useful as an antifeedant and as insect growth regulators, said process comprising:
- a. refluxing, KOH with an alcohol followed by adding carbondisulphide to get a yellow crystalline compound namely potassium-O-alkylxanthate,
- b. reacting the potassium-O-alkylxanthate in the presence of ketone with a bromide derivative selected from methylene di bromide, ethylene di bromide, p-Xylene dibromide or m-flurobenxyl bromide, filtering and removing the ketone under reduced pressure to obtain corresponding alkylxanthate compounds with the yield ranging from 70 to 80%.
A composition used as an insect growth regulator and an antifeedant for the integrated pest management, said composition comprising an effective amount of alkylxanthate or analogues of alkylxanthates with an additive.
Dependencies are inferred from the claim text.