• Dilip Kotkar

Articles written in Journal of Chemical Sciences

• Chiral recognition through clays

Using optically active Ru(bpy)32+ and Ru(phen)32+ as probe chelates, the phenomenon of chiral recognition is demonstrated with clays. Similarities and differences in the binding states of the above chelates are also discussed. Finally, the effect of such binding state differences on clay aggregation patterns are reported.

• Hydrogenation of olefins on Ru/pillared montmorillonite

Hydrogenation reactions of olefinic hydrocarbons using ruthenium-incorporated pillared montmorillonite as catalysts are reported. Depending on the steric hindrance, Ru/pillared montmorillonite selectively reduces carbon-carbon double bonds using hydrogen under pressure.

• Hydrogenation of cycloalkenes on Rh/montmorillonite

We report here the hydrogenation of cycloalkenes using Rh-supported montmorillonite as a catalyst. The catalyst preparation was based on oxidative degradation of intercalatedtris(phenanthroline)-Rh (III) followed by reduction under hydrogen atmosphere. No obvious trend is seen in the hydrogenation yields of the olefins though cyclopentene and cyclooctene are reduced faster than cyclohexene and cycloheptene. 2-Cyclohexen-1-one reacts marginally faster than cyclohexene under similar conditions. When the hydrogenation experiments were repeated employing binary mixtures of the olefins, considerable differences in hydrogenation behaviour were observed over that found when the olefins were taken in their pure form. The most notable difference in the hydrogenation behaviour of binary mixtures was observed in the case of cyclopentene/cyclooctene: both olefins could be efficiently hydrogenated in their pure form but there was no conversion of cyclooctene in presence of cyclopentene.

• Complete suppression of back-reaction in strongly acidic media for photochemically active Ru(bp)$_3^{2+}$-O2 system

• # Journal of Chemical Sciences

Volume 134, 2022
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019