EBK GET READY FOR ORGANIC CHEMISTRY
EBK GET READY FOR ORGANIC CHEMISTRY
2nd Edition
ISBN: 9780100576377
Author: KARTY
Publisher: YUZU
Question
Book Icon
Chapter 10, Problem 10.10YT
Interpretation Introduction

Interpretation:

Out of the two given ketones, A and B, which ketone will undergo bromination faster under acidic conditions is to be determined.

Concept introduction:

Alpha halogenation is the halogenation at the alpha carbon atom of an aldehyde or a ketone under acidic conditions. Under these conditions, a negatively charged enolate ion is highly basic and cannot exist at substantial concentrations. However, the alpha carbon atom of a ketone can still become electron-rich via acid-catalyzed keto-enol tautomerism.

Under the acidic conditions, the first step is the protonation of carbonyl oxygen. In the second step, the acetate ions serve as a base and abstract an alpha proton from ketone; this yields an enol form. In the enol form, the alpha carbon is electron rich due to the small contribution by the resonance structure in which a negative charge and a lone pair of electrons are located on the alpha carbon. Alpha halogenation occurs only once as the electron withdrawing effect of bromine destabilizes the positive charge if the carbonyl oxygen gets protonated further. This reduces the chances of the second halogenation.

Blurred answer
Students have asked these similar questions
(EXM 2, PRBLM 3) Here is this problem, can you explain it to me and show how its done. Thank you I need to see the work for like prbl solving.
can someone draw out the reaction mechanism for this reaction showing all bonds, intermediates and side products Comment on the general features of the 1H-NMR spectrum of isoamyl ester provided below
What would be the best choices for the missing reagents 1 and 3 in this synthesis? 1. PPh3 3 2. n-BuLi • Draw the missing reagents in the drawing area below. You can draw them in any arrangement you like. • Do not draw the missing reagent 2. If you draw 1 correctly, we'll know what it is. • Note: if one of your reagents needs to contain a halogen, use bromine. Click and drag to start drawing a structure.

Chapter 10 Solutions

EBK GET READY FOR ORGANIC CHEMISTRY

Ch. 10 - Prob. 10.11PCh. 10 - Prob. 10.12PCh. 10 - Prob. 10.13PCh. 10 - Prob. 10.14PCh. 10 - Prob. 10.15PCh. 10 - Prob. 10.16PCh. 10 - Prob. 10.17PCh. 10 - Prob. 10.18PCh. 10 - Prob. 10.19PCh. 10 - Prob. 10.20PCh. 10 - Prob. 10.21PCh. 10 - Prob. 10.22PCh. 10 - Prob. 10.23PCh. 10 - Prob. 10.24PCh. 10 - Prob. 10.25PCh. 10 - Prob. 10.26PCh. 10 - Prob. 10.27PCh. 10 - Prob. 10.28PCh. 10 - Prob. 10.29PCh. 10 - Prob. 10.30PCh. 10 - Prob. 10.31PCh. 10 - Prob. 10.32PCh. 10 - Prob. 10.33PCh. 10 - Prob. 10.34PCh. 10 - Prob. 10.35PCh. 10 - Prob. 10.36PCh. 10 - Prob. 10.37PCh. 10 - Prob. 10.38PCh. 10 - Prob. 10.39PCh. 10 - Prob. 10.40PCh. 10 - Prob. 10.41PCh. 10 - Prob. 10.42PCh. 10 - Prob. 10.43PCh. 10 - Prob. 10.44PCh. 10 - Prob. 10.45PCh. 10 - Prob. 10.46PCh. 10 - Prob. 10.47PCh. 10 - Prob. 10.48PCh. 10 - Prob. 10.49PCh. 10 - Prob. 10.50PCh. 10 - Prob. 10.51PCh. 10 - Prob. 10.52PCh. 10 - Prob. 10.53PCh. 10 - Prob. 10.54PCh. 10 - Prob. 10.55PCh. 10 - Prob. 10.56PCh. 10 - Prob. 10.57PCh. 10 - Prob. 10.58PCh. 10 - Prob. 10.59PCh. 10 - Prob. 10.60PCh. 10 - Prob. 10.61PCh. 10 - Prob. 10.62PCh. 10 - Prob. 10.63PCh. 10 - Prob. 10.64PCh. 10 - Prob. 10.65PCh. 10 - Prob. 10.66PCh. 10 - Prob. 10.67PCh. 10 - Prob. 10.68PCh. 10 - Prob. 10.69PCh. 10 - Prob. 10.70PCh. 10 - Prob. 10.71PCh. 10 - Prob. 10.72PCh. 10 - Prob. 10.73PCh. 10 - Prob. 10.74PCh. 10 - Prob. 10.1YTCh. 10 - Prob. 10.2YTCh. 10 - Prob. 10.3YTCh. 10 - Prob. 10.4YTCh. 10 - Prob. 10.5YTCh. 10 - Prob. 10.6YTCh. 10 - Prob. 10.7YTCh. 10 - Prob. 10.8YTCh. 10 - Prob. 10.9YTCh. 10 - Prob. 10.10YTCh. 10 - Prob. 10.11YTCh. 10 - Prob. 10.12YTCh. 10 - Prob. 10.13YTCh. 10 - Prob. 10.14YTCh. 10 - Prob. 10.15YTCh. 10 - Prob. 10.16YTCh. 10 - Prob. 10.17YTCh. 10 - Prob. 10.18YTCh. 10 - Prob. 10.19YT
Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Organic Chemistry: A Guided Inquiry
Chemistry
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Cengage Learning