AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

Lucas' reagent

Organic Chemistry Lecture 11b

Subject: 
Chemistry
Rating: 
0
No votes yet
SocialTags: 
Chemistry
Organic chemistry
Functional groups
Substitution reactions
Name reactions
Chlorides
Rearrangement reactions
Alcohol
SN1 reaction
Ester
Lucas' reagent
Pinacol rearrangement

Chapter 11 * Reaction with HBr ?OH of alcohol is protonated. ?OH2+ is good leaving group. 3? and 2? alcohols react with Br- via SN1. 1? alcohols react via SN2. H 3 O + B r - R O H R O H H R B r Chapter 11 Chapter 11 * Reaction with HCl Chloride is a weaker nucleophile than bromide. Add ZnCl2, which bonds strongly with ?OH, to promote the reaction. The chloride product is insoluble. Lucas test: ZnCl2 in concentrated HCl: 1? alcohols react slowly or not at all. 2? alcohols react in 1-5 minutes. 3? alcohols react in less than 1 minute. Chapter 11 Chapter 11 * SN2 Reaction with the Lucas Reagent Primary alcohols react with the Lucas reagent (HCl and ZnCl2) by the SN2 mechanism. Reaction is very slow. The reaction can take from several minutes to several days. Chapter 11 *

Organic Chemistry Lecture 11

Subject: 
Chemistry
Rating: 
0
No votes yet
SocialTags: 
Chemistry
Organic chemistry
Functional groups
Alcohol
Lucas' reagent
Alkene
Ester
Pyridinium chlorochromate
Tosyl
Phosphorus tribromide
Aldehyde
Ether

Chapter 11 Reactions of Alcohols ?2010, Prentice Hall Organic Chemistry, 7th Edition L. G. Wade, Jr. Chapter 11 * Types of Alcohol Reactions Dehydration to alkene Oxidation to aldehyde, ketone Substitution to form alkyl halide Reduction to alkane Esterification Tosylation Williamson synthesis of ether Chapter 11 Chapter 11 * Summary Table Chapter 11 Chapter 11 * Oxidation States Easy for inorganic salts: CrO42- reduced to Cr2O3. KMnO4 reduced to MnO2. Oxidation: Gain of O, O2, or X2; loss of H2. Reduction: Gain of H2 (or H-); loss of O or O2; and loss of X2. The gain or loss of H+, H2O, HX, etc. is neither an oxidation nor a reduction. Chapter 11 Chapter 11 * Oxidation States of Carbons Chapter 11 Chapter 11 *
Subscribe to RSS - Lucas' reagent

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!