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Showing papers by "Dillip Kumar Chand published in 2009"


Journal ArticleDOI
TL;DR: In this paper, the role of MoO2Cl2 and some complexes containing MoO 2Cl2 as catalysts for various Lewis acid catalysed organic transformations, oxidation and reduction reactions is reviewed.
Abstract: The role of MoO2Cl2 and some complexes containing MoO2Cl2 as catalysts for various Lewis acid catalysed organic transformations, oxidation and reduction reactions is reviewed.

69 citations


Journal ArticleDOI
TL;DR: In this paper, a simple and efficient method for the oxidation of sulfides to sulfones at room temperature using ammonium heptamolybdate and 30% H2O2 was developed.

34 citations


Journal ArticleDOI
TL;DR: In this paper, a novel and efficient method for the one-pot transformation of β-hydroxy carbonyl compounds to α-brominated 1,3-dicarbonyls was achieved with MoO 2 Cl 2 in the presence of Nbromosuccinimide.
Abstract: A novel and efficient method for the one-pot transformation of β-hydroxycarbonylcompounds to α-brominated 1,3-dicarbonyl compounds is achievedwith MoO 2 Cl 2 in the presence of N-bromosuccinimide. All the reactionswere carried out under mild conditions and provide good yields ofthe products. No bromination occurs at benzylic and allylic positions.

3 citations


Journal ArticleDOI
TL;DR: In this paper, a novel and efficient method for the one-pot transformation of b-hydroxy carbonyl compounds to a-brominated 1,3-dicarbonyl compound is achieved with MoO2Cl2.
Abstract: SYNTHESIS 2009, No. 2, pp 0306–0310xx.xx.2008 Advanced online publication: 12.12.2008 DOI: 10.1055/s-0028-1083273; Art ID: Z20308SS © Georg Thieme Verlag Stuttgart · New York Abstract: A novel and efficient method for the one-pot transformation of b-hydroxycarbonyl compounds to a-brominated 1,3-dicarbonyl compounds is achieved with MoO2Cl2 in the presence of Nbromosuccinimide. All the reactions were carried out under mild conditions and provide good yields of the products. No bromination occurs at benzylic and allylic positions.

1 citations