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Definition. An enone is a functional group consisting of a carbon-carbon double bond adjacent to a carbonyl group (ketone or aldehyde). Enones are important intermediates in organic synthesis, particularly in the context of aldol condensations and enamine reactions.
Objectives. After studying this Unit, you will be able to. explain the characteristics of biomolecules like carbohydrates, proteins and nucleic acids and hormones; classify carbohydrates, proteins, nucleic acids and vitamins on the basis of their structures; explain the difference between DNA and RNA; describe the role of biomolecules in biosystem.
Enones. An enone (or alkenone) is an organic compound containing both alkene and ketone functional groups. In an α,β-unsaturated enone, the alkene is conjugated to the carbonyl group of the ketone. [3] The simplest enone is methyl vinyl ketone (butenone, CH 2 =CHCOCH 3).
En one (α,β unsaturated ketone): A contraction of alk en e ket one. A functional group in which a ketone is conjugated with an alkene, or any molecule containing this functional group.
1,2 vs. 1,4 addition. Whether 1,2 or 1,4-addition occurs depends on multiple variables but mostly it is determined by the nature of the nucleophile. During the addition of a nucleophile there is a competition between 1,2 and 1,4 addition products.
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