Kinetics of the acidic hydrolysis of fenuron in the aqueous and micellar media

Gangwar, S. K.; Rafiquee, M.Z.A.

doi:10.1007/s00396-007-1711-z

Cited by 2 publications

(1 citation statement)

References 12 publications

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“…Micelle‐forming surfactants have been widely used as reaction media for many important organic reactions . Micelles provide different reactive sites/microenvironments for different parts of reactant molecules .…”

Section: Introductionmentioning

confidence: 99%

Kinetic study on effect of novel cationic dimeric surfactants for the cleavage of carboxylate ester

Kumar¹,

Ghosh

Barbero

et al. 2013

J of Physical Organic Chem

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Kinetic study has been performed to understand the reactivity of novel cationic gemini surfactants viz. alkanediyla,v-bis(hydroxyethylmethylhexadecylammonium bromide) C 16 -s-C 16 MEA, 2Br À (where s = 4, 6) in the cleavage of p-nitrophenyl benzoate (PNPB). Novel cationic gemini C 16 -s-C 16 MEA, 2Br À surfactants are efficient in promoting PNPB cleavage in presence of butane 2,3-dione monoximate and N-phenylbenzohydroxamate ions. Model calculation revealed that the higher catalytic effect of ethanol moiety of gemini surfactants (C 16 H 33 N + C 2 H 4 OH CH 3 (CH 2 ) S N + C 2 H 4 OH CH 3 C 16 H 33 , 2Br À , s = 4, 6) is due to their higher binding capacity toward substrate. This is in line with finding that binding constants for novel series of cationic gemini surfactants are higher than conventional cationic gemini (C 16 H 33 N + (CH 3 ) 2 (CH 2 ) S N + (CH 3 ) 2 C 16 H 33 , 2Br À , s = 10, 12), cetyldimethylethanolammonium bromide and zwitterionic surfactants, i.e. C n H 2n+1 N + Me 2 (CH 2 ) 3 SO 3 À (n = 10; SB3-10). The fitting of kinetic data was analyzed by the pseudophase model.

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Section: Introductionmentioning

confidence: 99%

Kinetic study on effect of novel cationic dimeric surfactants for the cleavage of carboxylate ester

Kumar¹,

Ghosh

Barbero

et al. 2013

J of Physical Organic Chem

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Kinetics of Reduction of Colloidal MnO₂ by Glyphosate in Aqueous and Micellar Media

Aisha

Qamruzzaman

Rafiquee

2011

International Journal of Inorganic Chemistry

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The kinetics of the reduction of colloidal MnO2 by glyphosate has been investigated spectrophotometrically in an aqueous and micellar (cetyltrimethylammonium bromide, sodium lauryl sulfate) media. The reaction follows first-order kinetics with respect to colloidal MnO2 in both the aqueous and micellar media. The rate of oxidation increases with increase in [glyphosate] in the lower concentration range but becomes independent at its higher concentrations. The addition of both the anionic (NaLS) and cationic (CTAB) micelles increased the rate of reduction of colloidal MnO2 by glyphosate while the nonionic TX-100 micelles did not influence the rate of reaction. In both aqueous and micellar media, the oxidation of glyphosate occurs through its adsorption over colloidal MnO2 surface. The reaction in micellar media was treated by considering the pseudophase model. The values of reaction rates and binding constants in the presence of micelles were determined.

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Kinetics of the acidic hydrolysis of fenuron in the aqueous and micellar media

Cited by 2 publications

References 12 publications

Kinetic study on effect of novel cationic dimeric surfactants for the cleavage of carboxylate ester

Kinetic study on effect of novel cationic dimeric surfactants for the cleavage of carboxylate ester

Kinetics of Reduction of Colloidal MnO₂ by Glyphosate in Aqueous and Micellar Media

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Kinetics of the acidic hydrolysis of fenuron in the aqueous and micellar media

Cited by 2 publications

References 12 publications

Kinetic study on effect of novel cationic dimeric surfactants for the cleavage of carboxylate ester

Kinetic study on effect of novel cationic dimeric surfactants for the cleavage of carboxylate ester

Kinetics of Reduction of Colloidal MnO2 by Glyphosate in Aqueous and Micellar Media

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Product

Resources

About

Kinetics of Reduction of Colloidal MnO₂ by Glyphosate in Aqueous and Micellar Media