CHM 234|Alcohol part 2
CHM 234|Alcohol part 2 CHM 234
Popular in General Organic Chemistry II
verified elite notetaker
Popular in Chemistry
This 6 page Class Notes was uploaded by Alvin Notetaker on Saturday February 6, 2016. The Class Notes belongs to CHM 234 at Arizona State University taught by Pillai in Fall 2015. Since its upload, it has received 30 views. For similar materials see General Organic Chemistry II in Chemistry at Arizona State University.
Reviews for CHM 234|Alcohol part 2
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 02/06/16
Alcohol 3. Preparation of Alcohols by Substitution or Addition Substitution Reactions Primary substrate → S N → strong nucleophile Tertiary substrate → S N → weak nucleophile (First arrow = requires / second arrow = will be) Addition Reactions A. Acidcatalyzed Reaction B. Mercurationdemercuration Reaction C. HydroborationOxidation Reaction 4. Preparation of Alcohols by Reduction Oxidation States There are ways to count electrons: Formal charges and Oxidation states. Formal Charges Oxidation states (The electron goes toward the more electronegative atom bonded to that atom.) Formal charge can stay the same on the atom (like carbon), but oxidation states can change. The range for oxidation states is 4 to +4 Reducing Agent Reducing agent reduce aldehyde or ketone functional group into hydroxyl functional group. General reaction: A. Catalytic Hydrogenation B. Sodium borohydride (NaBH4) Mechanism: C. Lithium aluminum hydride (LAH) Mechanism: Example: LAH is more reactive than NaBH and will react with carboxylic acid and ester to give alcohol. 4 Mechanism: Example 5. Preparation of Diols ● Have two hydroxyl group ● In naming, the “diol” is put in the end of the name. 1,3Propanediol 1,5Hexanediol Glycol indicates the presence of two hydroxyl groups Anti Dihydroxylation Dihydroxylation A reaction that add two hydroxyl group across the alkene. Mechanism: Example:
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'