MWF_5 - Organic Lecture Series CH 310/318 M Textbook...

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Organic Lecture Series 1 CH 310/318 M LECTURE 5 Textbook Assignment: Chapter 2 Today’s Topics: Alkanes; classification; nomenclature Alkanes; classification; nomenclature Notice & Announcements: Problem Set 1 posted- Due: 1/30; 3 PM Med Seminar this Friday: WEL 1.316 2 PM Reginald Baptiste, MD Cardiothoracic Surgeon Organic Lecture Series 2 Alkanes and Alkanes and Cycloalkanes Cycloalkanes Chapter 2 Chapter 2
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Organic Lecture Series 3 • Alkyl groups 1-methylethyl (isopropyl) propyl ethyl methyl Condensed Structural Formula Name CH 3 -CH 2 3 3 2 2 3 -CHCH 3 1,1-dimethylethyl ( tert- butyl) 1-methylpropyl ( sec- butyl) 2-methylpropyl (isobutyl) butyl 3 3 3 3 2 2 2 3 2 CHCH 3 2 3 -CCH 3 Condensed Structural Formula Name Nomenclature Nomenclature - IUPAC IUPAC Organic Lecture Series 4 Nomenclature Nomenclature - Common Common • The number of carbons in the alkane determines the name. – All alkanes with four carbons are butanes, those with five carbons are pentanes, etc. – iso- indicates the chain terminates in -CH(CH 3 ) 2 ; neo- that it terminates in -C(CH 3 ) 3 . 3 2 2 2 3 3 3 3 3 2 3 3 3 2 2 3 3 CCH 3 3 3 Pentane Isopentane Isobutane Butane Neopentane
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Organic Lecture Series 5 IUPAC IUPAC - General General • prefix-infix-suffix – Prefix Prefix:Tells the number of carbon atoms in the parent chain. – Infix Infix : Tells the nature of the carbon-carbon bonds in the parent chain. – Suffix Suffix : Tells the class of the compound. one or more triple bonds one or more double bonds all single bonds -yn- -en- -an- Nature of Carbon-Carbon Bonds in the Parent Chain Infix Suffix Class -e -ol -al -one -oic acid hydrocarbon alcohol aldehyde ketone carboxylic acid -amine amine Organic Lecture Series 6 prop- en
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This note was uploaded on 03/18/2012 for the course CH 310 M taught by Professor Iverson during the Spring '09 term at University of Texas.

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MWF_5 - Organic Lecture Series CH 310/318 M Textbook...

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