
Concept explainers
a)
Interpretation:
The structure of the
Concept introduction:
Aldehydes and ketones with α-hydrogen undergo a base catalyzed carbonyl condensation reaction in aldol condensation. In this reaction two molecules of the reactant combine by forming a bond between α-carbon of one molecule and the carbonyl carbon within the same molecule or of the second molecule to give an aldol. The aldol dehydrates on heating to yield α, β-unsaturated aldehyde or ketone.
To show:
The structure of the aldehydes or ketones that should be used as a starting material to synthesize the compound given in an aldol reaction.
b)
Interpretation:
The structure of the aldehydes or ketones that should be used as a starting material to synthesize the compound given in an aldol reaction is to be shown.
Concept introduction:
Aldehydes and ketones with α-hydrogen undergo a base catalyzed carbonyl condensation reaction in aldol condensation. In this reaction two molecules of the reactant combine by forming a bond between α-carbon of one molecule and the carbonyl carbon within the same molecule or of the second molecule to give an aldol. The aldol dehydrates on heating to yield α, β-unsaturated aldehyde or ketone.
To show:
The structure of the aldehydes or ketones that should be used as a starting material to synthesize the compound given in an aldol reaction.
c)
Interpretation:
The structure of the aldehydes or ketones that should be used as a starting material to synthesize the compound given in an aldol reaction is to be shown.
Concept introduction:
Aldehydes and ketones with α-hydrogen undergo a base catalyzed carbonyl condensation reaction in aldol condensation. In this reaction two molecules of the reactant combine by forming a bond between α-carbon of one molecule and the carbonyl carbon within the same molecule or of the second molecule to give an aldol. The aldol dehydrates on heating to yield α, β-unsaturated aldehyde or ketone.
To show:
The structure of the aldehyde that should be used as a starting material to synthesize the compound given in an aldol reaction.
d)
Interpretation:
The structure of the aldehydes or ketones that should be used as a starting material to synthesize the compound given in an aldol reaction is to be shown.
Concept introduction:
Mixed aldol condensation leads to a single product if i)one of the carbonyl partners contains no α hydrogen atoms but contains an unhindered carbonyl group and ii) if one of the carbonyl partners are much more acidic than the other and thus forms an enolate anion in preference to other.
To show:
The structure of the aldehydes or ketones that should be used as a starting material to synthesize the compound given in an aldol reaction.

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Chapter 23 Solutions
Organic Chemistry
- Identify the compound with the longest carbon - nitrogen bond. O CH3CH2CH=NH O CH3CH2NH2 CH3CH2C=N CH3CH=NCH 3 The length of all the carbon-nitrogen bonds are the samearrow_forwardIdentify any polar covalent bonds in epichlorohydrin with S+ and 8- symbols in the appropriate locations. Choose the correct answer below. Η H's+ 6Η Η Η Η Η Ηδ Η Ο Ο HH +Η Η +Η Η Η -8+ CIarrow_forwardH H:O::::H H H HH H::O:D:D:H HH HH H:O:D:D:H .. HH H:O:D:D:H H H Select the correct Lewis dot structure for the following compound: CH3CH2OHarrow_forward
- Rank the following compounds in order of decreasing boiling point. ннннн -С-С-Н . н-с- ННННН H ΗΤΗ НННН TTTĪ н-с-с-с-с-о-н НННН НН C' Н н-с-с-с-с-н НН || Ш НННН H-C-C-C-C-N-H ННННН IVarrow_forwardRank the following compounds in order of decreasing dipole moment. |>||>||| ||>|||>| |>|||>|| |||>||>| O ||>>||| H F H F H c=c || H c=c F F IIIarrow_forwardchoose the description that best describes the geometry for the following charged species ch3-arrow_forward
- Why isn't the ketone in this compound converted to an acetal or hemiacetal by the alcohol and acid?arrow_forwardWhat is the approximate bond angle around the nitrogen atom? HNH H Harrow_forwardOH 1. NaOCH2CH3 Q 2. CH3CH2Br (1 equiv) H3O+ Select to Draw 1. NaOCH2 CH3 2. CH3Br (1 equiv) heat Select to Edit Select to Drawarrow_forward
- Complete and balance the following half-reaction in acidic solution. Be sure to include the proper phases for all species within the reaction. S₂O₃²⁻(aq) → S₄O₆²⁻(aq)arrow_forwardQ Select to Edit NH3 (CH3)2CHCI (1 equiv) AICI 3 Select to Draw cat. H2SO4 SO3 (1 equiv) HO SOCl2 pyridine Select to Edit >arrow_forwardComplete and balance the following half-reaction in basic solution. Be sure to include the proper phases for all species within the reaction. Zn(s) → Zn(OH)₄²⁻(aq)arrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage LearningOrganic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning

