Answered: UESTION 4 True or False. The initial… | bartleby

Organic Chemistry: A Guided Inquiry

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter26: Aldol And Claisen Reactions

Section: Chapter Questions

Problem 1E

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UESTION 4
True or False. The initial prodact of the aldol reaction is a beta-hydroxycarbonyl compound. These dehydrate readily when heated because
the product is stabilized by having conjugated double bonds.
True
False
dascribed as a crossed aldol reaction.

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2 CH3COOCH,CH3 C2H5O'K*/C2H5OH ---> CH3COCH,COOCH,CH3 [+] Hofmann elimination Clemmensen reduction Claisen condensation O Cannizzaro reaction O Aldol condensation
What conditions are necessary for a crossed-aldol reaction to occur? NaOH, H2O TH. H. 50° C II O Molecule Il is added slowly to the reaction mixture. O These reagents cannot undergo an aldol reaction in basic solution. O Moleculel is added slowly to the reaction mixture. O NAOH is added slowly to the reaction mixture.
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What aldehyde or ketone is needed to prepare each compound by an aldol reaction?
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Draw the structure of the major aldol product (prior to possible dehydration) of the following reaction without specifying stereochemistry. 0 dilute aqueous NaOH 0-5° • You do not have to consider stereochemistry. • If no reaction occurs, draw the organic starting material. ChemDoodle 3b
Draw the structure of the major aldol product (prior to possible dehydration) of the following reaction. ore (+ • You do not have to consider stereochemistry. • If no reaction occurs, draw the organic starting material. **8 MYLL H / dilute aqueous NaOH 0-5⁰ Ⓡ Sn [F ChemDoodle Ⓡ
Draw the product formed when each dicarbonyl compound undergoes anintramolecular aldol reaction followed by dehydration, when possible.

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