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Browsing by Author "Kamat, D.P."

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A concise synthesis of 1-oxygenated carbazole alkaloids, Clausine E and Clausine F

Kamat, D.P.; Parsekar, S.B.; Kamat, V.P.; Tilve, S.G. (Synthesis. 46(20); 2014; 2789-2793.)

A rapid entry into naturally occurring and biologically important 1-oxygenated carbazole clausine E was established through Wittig reaction and annulation. Further O-prenylation of clausine E by Mitsunobu reaction followed ...
CuO-NiO-TiO sub(2) bimetallic nanocomposites for catalytic applications

Bakre, P.V.; Kamat, D.P.; Mandrekar, K.S.; Tilve, S.G.; Ghosh, N.N. (Molecular Catalysis. 496; 2020; ArticleID_111193.)

CuO-NiO-TiO sub(2) nanocomposites with of 0.01-5.0 wt. percent of Cu:Ni (1:1) supported on TiO sub(2) were prepared by a decomposition method. The catalysts structure and chemical composition were studied by means of XRD, ...
Domino Wittig-Diels Alder reaction: Synthesis of carbazole lignans

Tilve, S.G.; Torney, P.S.; Patre, R.E.; Kamat, D.P.; Srinivasan, B.R.; Zubkov, F.I. (Tetrahedron Letters. 57(21); 2016; 2266-2268.)

A convenient two step protocol for the synthesis of carbazole lignans involving Domino Wittig reaction/Diels Alder reaction followed by aromatization with DDQ is described. The main step of this protocol involves interaction ...
Molecular iodine catalyst promoted synthesis of chromans and 4-aryl-3,4-dihydrobenzopyran-2-ones via [3+3] cyclocoupling

Naik, Mayuri M.; Kamat, D.P.; Tilve, S.G.; Kamat, V.P. (Tetrahedron. 70(34); 2014; 5221-5233.)

Molecular iodine as an inexpensive catalyst is described in the construction of 2-substituted or 2,2-disubstituted chromans and 4-aryl-3,4-dihydrobenzopyran-2-ones via [3+3] cyclocoupling. For the synthesis of chromans, ...
Solvent-free synthesis of 4-aryl-3,4-dihydrobenzopyran-2-ones via [3+3] cyclocoupling of phenols with cinnamic acid catalyzed by molecular iodine

Kamat, D.P.; Tilve, S.G.; Kamat, V.P. (Tetrahedron Letters. 53(33); 2012; 4469-4472.)

Molecular iodine was used as a catalyst in the [3+3] cyclocoupling of phenols and cinnamic acids which proceeds via a tandem esterification-hydroarylation process at 120-130 degrees C under solvent-free conditions. Substituted ...
Syntheses and biological activities of chroman-2-ones: A review

Kamat, D.P.; Tilve, S.G.; Kamat, V.P.; Kirtany, J.K. (Organic Preparations and Procedures International. 47; 2015; 1-79.)
Synthetic Studies in Selected Heterocyclic Compounds

Kamat, D.P.
Total synthesis of naturally occurring 1-oxygenated carbazole alkaloids - clausine E, clausenapin, indizoline and formal synthesis of clausenaline D

Kamat, D.P.; Tilve, S.G. (ARKIVOC. (4); 2016; 11-22.)

Total synthesis of indizoline and clausenapin have been accomplished via a facile functional group transformation of the ester functionality at the C-3 carbon of the key ester intermediate derived from clausine E by employing ...

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