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Unformatted text preview: CHEMISTRY 3B Professor Peter Vollhardt 10/15/08 Lecture 14 ASUC Lecture Notes Online is the only authorized note-taking service at UC Berkeley. Do not share, copy or illegally distribute (electronically or otherwise) these notes. Our student-run program depends on your individual subscription for its continued existence. These notes are copyrighted by the University of California and are for your personal use only. D O N O T C O P Y Sharing or copying these notes is illegal and could end note taking for this course. LECTURE A while ago, we looked at the Lewis structure diagram of the C=O double bond. Because of the electronegativity of the oxygen, the double bond is polarized, and the oxygen is slightly negative when the carbon is slightly positive. The first time we saw a chemical consequence of the carbonyl electron distribution was formation of the alcohol by hydride reduction or alkyl Grignard additions. These reactions are performed when a nucleophile attacks the carbon of the carbonyl, with the electrons...
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- Fall '08