Interpretation:
Major product has to be predicted for the given reaction.
Concept Introduction:
Diels-Alder reaction is the 4+2 addition reaction. Here a total of six pi bonds are involved resulting in formation of one pi bond and two single bonds. Diels-Alder reaction occurs via a single concerted step and not by involvement of ions. If a monosubstituted ethylene is used, the product obtained contains a stereocenter. This can be represented as,
If 1,2-disubstituted ethylene is used as starting material, then the configuration of the dienophile is preserved in the product that is formed also. This means, if the dienophile is in cis-configuration, then the product formed will also have cis-configuration.
If the dienophile is in trans-configuration, then the product formed will also have trans-configuration.
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Chapter 10 Solutions
ORGANIC CHEMISTRY-NEXTGEN+BOX (2 SEM.)
- Nonearrow_forwardDraw the structure of the product of the reaction given the IR and MS data. Spectral analysis of the product reveals: MS: M 150, M-15, M-43 CH.COCI AICI, IR: 3150-3000 cm, 2950-2850 cm and 1700 cmarrow_forwardPart II. Identify whether the two protons in blue are homotopic, enantiopic, diasteriotopic, or heterotopic. a) HO b) Bri H HH c) d) H H H Br 0arrow_forward
- Nonearrow_forwardChoose the option that is decreasing from biggest to smallest. Group of answer choices: 100 m, 10000 mm, 100 cm, 100000 um, 10000000 nm 10000000 nm, 100000 um, 100 cm, 10000 mm, 100 m 10000000 nm, 100000 um, 10000 mm, 100 cm, 100 m 100 m, 100 cm, 10000 mm, 100000 um, 10000000 nmarrow_forwardQ1. (a) Draw equations for homolytic and heterolytic cleavages of the N-H bond in NH3. Use curved arrows to show the electron movement. (b) Draw equations for homolytic and heterolytic cleavages of the N-H bond in NH4*. Use curved arrows to show the electron movement.arrow_forward
- 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
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning