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Your search keyword '"Abraham C. Venter"' showing total 4 results
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4 results on '"Abraham C. Venter"'

1. Initial Interaction of Triphenylphosphonium-2-propenylide with Prenal Prior to Wittig Olefination

Author

David F. Schneider and Abraham C. Venter

Subjects
chemistry.chemical_compound, Betaine, chemistry, Organic Chemistry, Wittig reaction, Oxide, Medicinal chemistry, Dissociation (chemistry)
Abstract

The interaction of triphenylphosphonium-2-propenylide (2) with prenal (6) is shown to proceed via initial Cγ-C1 addition, followed by dissociation of the coupling product and Cα-C1 recombination to produce the corresponding betaine, which eliminates triphenyphosphine oxide to yield (E)- and (Z)-6-methyl-1,3,5-triene (7a,b) as the Wittig olefination products.

Published
1999
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2. Synthetic Potential of the Reaction of Allylic Phosphonium Ylides with α, β-Unsaturated Carbonyl Compounds

Author

Abraham C. Venter and David F. Schneider

Subjects
chemistry.chemical_compound, Allylic rearrangement, chemistry, Mesityl oxide, Intramolecular force, Yield (chemistry), Organic Chemistry, Condensation, Wittig reaction, Michael reaction, Organic chemistry, Phosphonium, Medicinal chemistry
Abstract

The reaction of triphenylphosphonium-2-propenylide (14) with mesityl oxide (9) is shown to proceed via initial Michael addition followed by trans ylidation and an intramolecular Wittig condensation to yield 1, 5, 5-trimethyl-1, 3-cyclohexadiene (10) as the reaction product.

Published
1999
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3. ChemInform Abstract: Synthetic Potential of the Reaction of Allylic Phosphonium Ylides with α,β-Unsaturated Carbonyl Compounds

Author

David F. Schneider and Abraham C. Venter

Subjects
chemistry.chemical_compound, Allylic rearrangement, Mesityl oxide, chemistry, Intramolecular force, Yield (chemistry), Wittig reaction, Condensation, Michael reaction, General Medicine, Phosphonium, Medicinal chemistry
Abstract

The reaction of triphenylphosphonium-2-propenylide (14) with mesityl oxide (9) is shown to proceed via initial Michael addition followed by trans ylidation and an intramolecular Wittig condensation to yield 1, 5, 5-trimethyl-1, 3-cyclohexadiene (10) as the reaction product.

Published
2010
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4. ChemInform Abstract: Initial Interaction of Triphenylphosphonium-2-propenylide with Prenal Prior to Wittig Olefination

Author

David F. Schneider and Abraham C. Venter

Subjects
chemistry.chemical_compound, Betaine, Chemistry, Stereochemistry, Yield (chemistry), Wittig reaction, Oxide, General Medicine, Medicinal chemistry, Dissociation (chemistry)
Abstract

The interaction of triphenylphosphonium-2-propenylide (2) with prenal (6) is shown to proceed via initial Cγ-C1 addition, followed by dissociation of the coupling product and Cα-C1 recombination to produce the corresponding betaine, which eliminates triphenyphosphine oxide to yield (E)- and (Z)-6-methyl-1,3,5-triene (7a,b) as the Wittig olefination products.

Published
2010
Full Text
View/download PDF

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