Provide the mechanism for the dehydration of the aldol reaction adduct to the enone shown below. OH ij aldol reaction adduct NaOH, THF 80 °C, 12 h enone
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- Draw the structures A, B and C for the reaction sequence below. Dehydration via an E1cb mechanism Michael Reaction Intramolecular Aldol Reaction A В КОН /ETOH / heat C КОН /ETOH КОН /ETOHThe first steps in the synthesis of azelnidipine, a calcium channel blocker, involves the reaction of β-keto ester A with aldehyde B in the presence of base. What crossed aldol product is formed in this reaction?The following is a key step in the synthesis of morphine involving the conversion of A to B. Draw a stepwise mechanism for this process, including an intramolecular alkylation and intramolecular aldol.A B A CHO SO2 Br N K2CO3 B N S02
- 2-Pentylcinnamaldehyde, commonly called flosal, is a perfume ingredient with a jasmine-like odor. Flosal is an α,β-unsaturated aldehyde made by a crossed aldol reaction between benzaldehyde (C6H5CHO) and heptanal (CH3CH2CH2CH2CH2CH2CHO), followed by dehydration. Draw a stepwise mechanism for the following reaction that prepares flosal.Give the IUPAC name of the two carbonyl compounds reacted together to synthesize compound A, given below, by a crossed aldol condensation followed by dehydration. || CH3CCH=CH₂2 AReaction benzaldehyde with (CH3CN) in presence of base called ? (a) Dopner reaction (b)Crossed Claisen condensation (C) Cope reaction (d) Aldol condensation 10:00 PM
- Propose a mechanism for the aldol reaction below 2 H3C H OH-, H2O se H3C H2-Pentylcinnamaldehyde, commonly called flosal, is a perfume ingredient with a jasminelike odor. Flosal is an α,β-unsaturated aldehyde made by a crossed aldol reactionbetween benzaldehyde (C6H5CHO) and heptanal (CH3CH2CH2CH2CH2CH2CHO), followed by dehydration. Draw a stepwise mechanism for the following reaction that prepares flosal.@GMU 73765 What is the expected product A for the following intramolecular aldol reaction? O CH3 O NaOH A H3C EtOH H
- • Using aldol or crossed aldol condensation, suggest a synthesis of the following compounds: a b مليمت H3C H3C CH3 H3C ge H SavedDraw the structure of the major aldol product (prior to possible dehydration) of the following reaction. CH3 CH3 H dilute NaOH 95% aq. ethanol, 0-5⁰ You do not have to consider stereochemistry. • If no reaction occurs, draw the organic starting material. O-Sn [F ? ChemDoodleⓇDraw the structure of the major aldol product (prior to possible dehydration) of the following reaction. O ⇐ H dilute NaOH 95% aq. ethanol, 0-5° • You do not have to consider stereochemistry. •If no reaction occurs, draw the organic starting material. + HO CH3 On t ?
