H3CArrow-pushing InstructionsNOC XTH3CH3C CH3H3C CH3Aldehydes and ketones can be halogenated at their a-position by reaction with Cl₂, Br₂, or I2, under acidic conditions.Using Br₂ under acidic conditions, an intermediate enol is formed which adds bromine at the a-position. The reaction stopsafter the addition of one bromine because the electron-withdrawing halogen decreases the basicity of the carbonyl oxygen,making the protonation less favorable.Draw curved arrows to show the movement of electrons in this step of the mechanism.:OHH3C CH3CH3Submit AnswerHBr₂, H3O+H₂OH3CH3C:OHH3C CH3FCH₂CH₂BrRetry Entire Group 9 more group attempts remainingH30 H3CArrow-pushing InstructionsNAH3CH3 CCH3H3C CH3Aldehydes and ketones can be halogenated at their a-position by reaction with Cl₂, Br₂, or I2, under acidic conditions.Using Br₂ under acidic conditions, an intermediate enol is formed which adds bromine at the a-position. The reaction stopsafter the addition of one bromine because the electron-withdrawing halogen decreases the basicity of the carbonyl oxygen,making the protonation less favorable.Draw curved arrows to show the movement of electrons in this step of the mechanism.:OHH3C CH3Submit AnswerCH3XTFCH₂Br₂, H3O+Br-BrH3CH3C.:OHH3C CH3CH₂BrRetry Entire Group 9 more group attempts remainingBr Br

Given : structure of reactant and product.

malo H3C H3C CH3 CH3 rrow-pushing Instru Br2, H3O+ H3C CH₂Br H3C CH3 Aldehydes and ketones can be halogenated at their a-position by reaction with Cl₂, Br₂, or I₂, under acidic conditions. Using Br₂ under acidic conditions, an intermediate enol is formed which adds bromine at the a-position. The reaction stops after the addition of one bromine because the electron-withdrawing halogen decreases the basicity of the carbonyl oxygen, making the protonation less favorable. Draw curved arrows to show the movement of electrons in this step of the mechanism.

malo H3C H3C CH3 CH3 rrow-pushing Instru Br2, H3O+ H3C CH₂Br H3C CH3 Aldehydes and ketones can be halogenated at their a-position by reaction with Cl₂, Br₂, or I₂, under acidic conditions. Using Br₂ under acidic conditions, an intermediate enol is formed which adds bromine at the a-position. The reaction stops after the addition of one bromine because the electron-withdrawing halogen decreases the basicity of the carbonyl oxygen, making the protonation less favorable. Draw curved arrows to show the movement of electrons in this step of the mechanism.

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter26: Aldol And Claisen Reactions

Section: Chapter Questions

Problem 26E

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