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5 results on '"Bola V"'

1. Synthesis of stilbene analogues by one-pot oxidation-Wittig and oxidation-Wittig–Heck reaction

Author

Krupa N. Patel, Ashutosh V. Bedekar, Akeel S. Saiyed, and Bola V. Kamath

Subjects
chemistry.chemical_classification, Organic Chemistry, Phosphonium salt, Halide, Biochemistry, Aldehyde, Medicinal chemistry, Catalysis, Styrene, chemistry.chemical_compound, chemistry, Ylide, Heck reaction, Drug Discovery, Wittig reaction
Abstract

Synthesis of symmetrical (and unsymmetrical) stilbene derivatives is achieved by a combination of one-pot steps of Kornblum type oxidation of benzyl halide, its simultaneous in situ formation of phosphonium salt, and subsequently their Wittig reaction. In other variant it is oxidized to aldehyde, treated with ylide generated from phosphonium salt (CH3PPh3X) to give styrene, and subjected to Pd catalyzed Heck reaction with arylhalide to give stilbenes as the three-step one-pot sequence.

Published
2012

2. Preparation of polymer anchored Pd-catalysts: Application in Mizoroki–Heck Reaction

Author

Bola V. Kamath, Krupa N. Patel, Ashutosh V. Bedekar, S.A. Patel, and Shishir Sinha

Subjects
chemistry.chemical_classification, Process Chemistry and Technology, Aryl, Polymer, Heterogeneous catalysis, Recyclable catalyst, Catalysis, chemistry.chemical_compound, chemistry, Heck reaction, Copolymer, Organic chemistry, Physical and Theoretical Chemistry
Abstract

A series of polymer anchored Schiff bases were prepared from chloromethylated styrene–divinylbenzene copolymer beads and loaded with PdCl 2 to get air and water stable supported catalysts. The catalysts were characterized and utilized in Mizoroki–Heck reaction of aryl bromides and iodides.

Published
2010

4. ChemInform Abstract: Synthesis of Stilbene Analogues by One-Pot Oxidation-Wittig and Oxidation-Wittig-Heck Reaction

Author

Krupa N. Patel, Ashutosh V. Bedekar, Bola V. Kamath, and Akeel S. Saiyed

Subjects
Chemistry, Heck reaction, Wittig reaction, Halide, Phosphonium salt, General Medicine, Medicinal chemistry
Abstract

Synthesis of symmetrical and unsymmetrical stilbene derivatives (II), (VII), and (X) is achieved by a combination of one-pot steps of Kornblum type oxidation of benzyl halide (I), its simultaneous in situ formation of phosphonium salt, and subsequent Wittig reaction.

Published
2012

5. Synthesis of stilbene analogues by one-pot oxidation-Wittig and oxidation-Wittig–Heck reaction

Author

Saiyed, Akeel S., Patel, Krupa N., Kamath, Bola V., and Bedekar, Ashutosh V.

Subjects
*ORGANIC synthesis, *STILBENE derivatives, *OXIDATION, *WITTIG reaction, *HECK reaction, *BENZYL halides, *PALLADIUM catalysts, *SALT
Abstract

Abstract: Synthesis of symmetrical (and unsymmetrical) stilbene derivatives is achieved by a combination of one-pot steps of Kornblum type oxidation of benzyl halide, its simultaneous in situ formation of phosphonium salt, and subsequently their Wittig reaction. In other variant it is oxidized to aldehyde, treated with ylide generated from phosphonium salt (CH3PPh3X) to give styrene, and subjected to Pd catalyzed Heck reaction with arylhalide to give stilbenes as the three-step one-pot sequence. [Copyright &y& Elsevier]

Published
2012
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