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5 results on '"Vithalanand R. Kulkarni"'

2. ChemInform Abstract: Phase-Transfer Catalyzed Alkylation of 2-(Diethoxyphosphinyl) cyclohexanone

Author

Suzanne M. Ruder and Vithalanand R. Kulkarni

Subjects
chemistry.chemical_classification, Steric effects, Cyclohexanone, Halide, General Medicine, Alkylation, Medicinal chemistry, Catalysis, Solvent, chemistry.chemical_compound, chemistry, Organic chemistry, Alkyl, Dichloromethane
Abstract

Alkylation of cyclic β-oxophosphonates using the ion pair extractive-phase transfer catalysis method was studied using 2-(diethoxyphosphinyl)cyclohexanone as the model compound. Unlike related phosphonic acid derivatives, the cyclic β-oxophosphonates exhibited ambident character under phase transfer conditions when dichloromethane was used as the solvent. Carbon alkylation was most effective when activated and sterically less demanding alkyl halides were utilized

Published
2010
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3. ChemInform Abstract: Michael-Type Additions of 2-(Diethoxyphosphinyl)cyclohexanone to Activated Alkenes and Alkynes

Author

Vithalanand R. Kulkarni and Suzanne M. Ruder

Subjects
chemistry.chemical_compound, Addition reaction, chemistry, Robinson annulation, Michael reaction, Cyclohexanone, General Medicine, Ring (chemistry), Phosphonate, Medicinal chemistry
Abstract

Michael reaction of phosphonate stabilized anions with activated alkenes and alkynes results in 1,4-addition, diastereoselective Robinson annulation, or (n+ 2) ring enlargement reactions.

Published
2010
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4. Phase Transfer Catalyzed Alkylation of 2-(Diethoxyphosphinyl)cyclohexane

Author

Suzanne M. Ruder and Vithalanand R. Kulkarni

Subjects
chemistry.chemical_classification, Ketone, Organic Chemistry, Cyclohexanone, Alkylation, Medicinal chemistry, Catalysis, Solvent, chemistry.chemical_compound, chemistry, Aliphatic compound, Alkyl, Dichloromethane
Abstract

Alkylation of cyclic β-oxophosphonates using the ion pair extractive-phase transfer catalysis method was studied using 2-(diethoxyphosphinyl)cyclohexanone as the model compound. Unlike related phosphonic acid derivatives, the cyclic β-oxophosphonates exhibited ambident character under phase transfer conditions when dichloromethane was used as the solvent. Carbon alkylation was most effective when activated and sterically less demanding alkyl halides were utilized

Published
1993
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5. Michael-type additions of 2-(diethoxyphosphinyl) cyclohexanone to activated alkenes and alkynes

Author

Suzanne M. Ruder and Vithalanand R. Kulkarni

Subjects
chemistry.chemical_classification, Reaction mechanism, Ketone, Chemistry, Alkene, Cyclohexanone, Alkyne, Medicinal chemistry, Phosphonate, chemistry.chemical_compound, Robinson annulation, Michael reaction, Molecular Medicine, Organic chemistry
Abstract

Michael reaction of phosphonate stabilized anions with activated alkenes and alkynes results in 1,4-addition, diastereoselective Robinson annulation, or (n+ 2) ring enlargement reactions.

Published
1994
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