CHE201 ACE - Study Guide

CHE201 ACE - Study Guide - Organic Chemistry I Study Guide...

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Unformatted text preview: Organic Chemistry I Study Guide Provided by www.AceOrganicChem.com Disclaimer : This guide is not meant to be a complete and thorough summary of all information you may have been presented in your particular class. It is meant to highlight some of the key concepts and possibly present an alternative methods to view problems. How do I learn this stuff?? • Organic chemistry is the flow of electrons. • Learn where the electrons want to go, and you can do any organic chemistry problem. • How do you do this? Learn the “rules” of organic chemistry. • Two types of learners: – Memorizers – Understanders • Usually, the students with the best grades know when to use which You can with do almost any O-Chem reaction with E.A.S.E •E lectrophile/Nucleophile •A cid/Base •S terics •E lectron Flow • Step 1: Identify nucleophiles and electrophiles. Who has electrons and who wants them? • Step 2: Are there acids and bases present? Can something be deprotonated? • Step 3: Are there steric considerations? ie, is there a bulky group hindering a reaction site? • Step 4: Let the electrons flow from nucleophile (negative) to electrophile (positive). Conformations of Cylcohexane Ring flips: Cyclohexane changing conformation H H ) ( “Chair” “Boat” H H H H H H CH 3 H H CH 3 H H H H CH 3 CH 3 CH 3 CH 3 H H Blue = axial substituents Red = equatorial substituents Same color are anti Diff color are cis Large groups want to be equatorial F F C H 3 C H 3 H ( ) H 1,3 diaxial interactions Eq Ax 60% 97% 95% >99.9% Free radicals: Homolytic cleavage of a bond gives a radical...
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CHE201 ACE - Study Guide - Organic Chemistry I Study Guide...

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