chem notes 12-5 - -2 of a group = di-3 of a group = tri-4...

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December 5, 2007 Dr. Stevens Gen. Chem. 1 Chapter 11 Objectives 1. Name and alkanes, alkenes, alkynes Organic Chemistry: -old meaning: from organism -new meaning: hydrocarbon (H and C) -Alkanes -straight chain C backbones -all single bonds -all C are n=4 -tetrahedral sp3 hybrid C Prefix # Meth 1 Eth 2 Prop 3 But 4 Pent 5 Hex 6 Hept 7 Oct 8 Non 9 Deca 10 -shorthand sketching: -backbone only (no H atoms) -ex: CH3-CH2-CH3 = C-C-C = /\ -naming branched alkanes: -#(attachment) + (prefix) + yl(attached group) + main chain name -use lowest possible # -if more than one of a particular attached group: -specify by using multiple
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Unformatted text preview: -2 of a group = di-3 of a group = tri-4 of a group = tetra-ex: draw 2, 2, 3 – trimethyl octane \/- 1 / 2 \ 3 / 4 \ 5 / 6 \ 7 / 8 \-ex: 3-ethyl-2-methyl-5, 6-propyl-decane / -/-1 / 2 \ 3 / 4 \ 5 / 6 \ 7 / 8 \ 9 / 10 \_ \_/-Alkenes-an UNsaturated hydrocarbon-at least one C=C-naming:-#-prefix-ene-ex: C=C-C 1-propene-ex: 2-methyl-1, 3-but ADI ene (sounds better than butane)-Alkynes-at least on C=_C-name:-#-prefix of chain-yne-ex: 4, 4-dipropyl-1, 6-decadiyne-start numbering so multiple bond will have lowest # possible...
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This note was uploaded on 04/23/2008 for the course CH 151 taught by Professor Stevens during the Fall '08 term at Whitworth University.

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chem notes 12-5 - -2 of a group = di-3 of a group = tri-4...

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