lecture note 4 - Organic Lecture Series CH 310/318 M...

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Organic Lecture Series 1 CH 310/318 M LECTURE 4 Textbook Assignment: Chapter 2 Today’s Topics: Alkanes & Cycloalkanes Alkanes & Cycloalkanes Notice & Announcements: POW 1 Posted to WEB site—Due 9/7 (Tues) Organic Lecture Series 2 • 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
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Organic Lecture Series 3 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 . CH 3 2 2 2 3 3 CHCH 3 3 3 2 3 3 3 2 2 3 3 CCH 3 3 3 Pentane Isopentane Isobutane Butane Neopentane Organic Lecture Series 4 Classification of C & H Classification of C & H • Primary (1 Primary (1 °) C: ) C: A carbon bonded to one other carbon. – 1° H: a hydrogen bonded to a 1° carbon • Secondary (2 Secondary (2 °) C: ) C: A carbon bonded to two other carbons.
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This note was uploaded on 09/12/2010 for the course CHEM 310m taught by Professor Colopret during the Fall '10 term at Austin Community College.

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lecture note 4 - Organic Lecture Series CH 310/318 M...

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