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Mulund, India

Gavade S.,P.A. College | Balaskar R.,P.A. College | Mane M.,P.A. College | Pabrekar P.N.,Vg Vaze College | Mane D.,P.A. College
Synthetic Communications | Year: 2012

Cu(acac) 2 activates aryl boronic acids for the reaction with NH 2-phenylurea without additional ligand and heating. The procedure is simple, general, ligand-free, milder than the palladium-catalyzed arylation, and avoids the use of toxic phosphine ligands. Copyright © Taylor & Francis Group, LLC. Source


Balaskar R.,Organic Research Laboratory | Gavade S.,Organic Research Laboratory | Mane M.,Organic Research Laboratory | Pabrekar P.,Vg Vaze College | And 2 more authors.
Letters in Organic Chemistry | Year: 2011

An efficient and convenient approach towards the synthesis of series of tetrahydro-4H-chromenes via one pot three component coupling reactions of aldehyde, dimedone and malononitrile carried out at room temperature in presence of triethylammonium acetate [TEAA] ionic liquid as a catalyst. Reusability of the catalyst with optimized reaction conditions has also been investigated. The present methodology was found to be economically feasible and environmentally benign. © 2011 Bentham Science Publishers Ltd. Source


Gavade S.N.,Organic Research Laboratory | Balaskar R.S.,Organic Research Laboratory | Mane M.S.,Organic Research Laboratory | Pabrekar P.N.,Vg Vaze College | And 2 more authors.
Chinese Chemical Letters | Year: 2011

The coupling reaction of phenylurea with different functionalized aryl halides in the presence of air stable CuI, N,N-dimethylethylenediamine as a ligand, and K3PO4 as a base gives symmetrical and unsymmetrical diarylureas in relatively high yields. This method is milder than the palladium catalyzed arylation and avoids the use of toxic phosphine ligands. © 2010 Dhananjay V. Mane. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved. Source


Gavade S.N.,Organic Research Laboratory | Balaskar R.S.,Organic Research Laboratory | Mane M.S.,Organic Research Laboratory | Pabrekar P.N.,Vg Vaze College | And 2 more authors.
Chinese Chemical Letters | Year: 2011

The ligand free coupling reaction of phenyl urea with different functionalized aryl halides in the presence of air stable Cu2O and t-BuOK as a base gives symmetrical and unsymmetrical diarylureas in relatively high yields. This method is milder than the palladium catalyzed arylation and avoids the use of toxic phosphine ligand. © 2010 Published by Elsevier B.V. on behalf of Chinese Chemical Society. Source


Mane M.S.,Organic Research Laboratory | Balaskar R.S.,Organic Research Laboratory | Gavade S.N.,Organic Research Laboratory | Pabrekar P.N.,Vg Vaze College | And 2 more authors.
Chinese Chemical Letters | Year: 2011

The regiospecific oxidation of alkyl group of both sterically hindered and unhindered aromatic amine to corresponding carbonyl compound was done in aq. medium by using DDQ. The optimized reaction protocol was found to be most simple, high yielding and novel method for oxidation of alkyl group of aromatic amine in to its carbonyl compound. © 2011 Dhananjay V. Mane. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved. Source

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