Concept explainers
Interpretation:
The structural formula for the compound D and for the product,
Concept introduction:
The
Wittig reaction is a reaction in which a nucleophilic elimination occurs after nucleophilic addition reaction. In this reaction an aldehyde or ketone reacts with a triphenyl phosphonium ylide (Wittig reagent) to give an
The reaction can be represented as shown below,
Mechanism:
It is possible to generate sulphur ylides in a manner similar to that used to produce phosphonium ylides. For example, treating a sulfonium salt with a strong base gives the sulphur ylide.
Sulfur ylides reacts with ketone to give
Want to see the full answer?
Check out a sample textbook solutionChapter 16 Solutions
Organic Chemistry, Loose-leaf Version
- Part II. count the expected number of signals in the 1H-NMR spectrum of these compounds HO 0 одев * Cl -cl "D"arrow_forwardPart I. Create a splitting tree diagram to predict the multiplet pattern of proton Hb in the compound below: 3 (Assume that "Jab >>> ³JbC) Ha Hb He он Ha NH2 Ha HCarrow_forwardNonearrow_forward
- SH 0arrow_forward2. Please consider the two all 'cis' isomers of trimethylcyclohexane drawn below. Draw the two chair conformers of each stereoisomer below (1 and 2) and calculate their torsional interaction energies in order to identify the lower energy conformer for each stereoisomer. Based on your calculations, state which of the two stereoisomers 1 and 2 is less stable and which is more stable. [1,3-diaxial CH3 CH3 = 3.7kcal/mol; 1,3-diaxial CH3 H = 0.88kcal/mol; cis-1,2 (axial:equatorial) CH3 CH3 = 0.88kcal/mol; trans-1,2-diequatorial CH3 CH3 = 0.88kcal/mol) all-cis-1,2,3- 1 all-cis-1,2,4- 2arrow_forwardNonearrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningEBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENT