8Chapter 04

Wolfs chm 201 202 h i cyclohexyl iodide 4 16

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Unformatted text preview: dide 4- 16 Substitutive Nomenclature of Alkyl Halides Substitutive Nomenclature of Alkyl Halides Name as halo-substituted alkanes. Number the longest chain containing the halogen in the direction that gives the lowest number to the substituted carbon. CH3CH2CH2CH2CH2F CH3CHCH2CH2CH3 Br CH3CH2CHCH2CH3 I Dr. Wolf's CHM 201 & 202 4- 17 Substitutive Nomenclature of Alkyl Halides Substitutive Nomenclature of Alkyl Halides Name as halo-substituted alkanes. Number the longest chain containing the halogen in the direction that gives the lowest number to the substituted carbon. CH3CH2CH2CH2CH2F 1-Fluoropentane CH3CH2CHCH2CH3 I Dr. Wolf's CHM 201 & 202 CH3CHCH2CH2CH3 Br 2-Bromopentane 3-Iodopentane 4- 18 Substitutive Nomenclature of Alkyl Halides Substitutive Nomenclature of Alkyl Halides Cl CH3 CH CH3 Cll C Dr. Wolf's CHM 201 & 202 Halogen and alkyl groups are of equal rank when are it comes to numbering it the chain. Number the chain in the direction that gives the direction lowest number to the lowest group (halogen or alkyl) that appears first. 4- 19 Substitutive Nomenclature of Alkyl Halides Substitutive Nomenclature of Alkyl Halides Cl 5-Chloro-2-methylheptane CH3 CH CH3 2-Chloro-5-methylheptane Cll C Dr. Wolf's CHM 201 & 202 4- 20 4.3 IUPAC Nomenclature of Alcohols Dr. Wolf's CHM 201 & 202 4- 21 Functional Class Nomenclature of Alcohols Functional Class Nomenclature of Alcohols Name the alkyl group and add "alcohol" as a separate word. CH3CH2OH CH3 CH3CCH2CH2CH3 CH3CHCH2CH2CH2CH3 OH OH Dr. Wolf's CHM 201 & 202 4- 22 Functional Class Nomenclature of Alcohols Functional Class Nomenclature of Alcohols Name the alkyl group and add "alcohol" as a separate word. CH3CH2OH Ethyl alcohol CH3CHCH2CH2CH2CH3 OH CH3 CH3CCH2CH2CH3 OH 1,1-Dimethylbutyl alcohol 1-Methylpentyl alcohol Dr. Wolf's CHM 201 & 202 4- 23 Substitutive Nomenclature of Alcohols Substitutive Nomenclature of Alcohols Name as "alkanols." Replace -e ending of alkane name by -ol. Number chain in direction that gives lowest number to the carbon that bears the —OH group. CH3CH2OH CH3 CH3CCH2CH2CH3 CH3CHCH2CH2CH2CH3 OH OH Dr. Wolf's CHM 201 & 202 4- 24 Substitutive Nomenclature of Alcohols Substitutive Nomenclature of Alcohols Name as "alkanols." Replace -e ending of alkane name by -ol. Number chain in direction that gives lowest number to the carbon that bears the —OH group. CH3CH2OH Ethanol CH3CHCH2CH2CH2CH3 OH 2-Hexanol Dr. Wolf's CHM 201 & 202 CH3 CH3CCH2CH2CH3 OH 2-Methyl-2-pentanol 4- 25 Substitutive Nomenclature of Alcohols Substitutive Nomenclature of Alcohols OH CH3 CH CH3 OH OH Dr. Wolf's CHM 201 & 202 Hydroxyl groups outrank Hydroxyl alkyl groups when it comes to numbering it the chain. Number the chain in the direction that gives the direction lowest number to the lowest carbon that bears the OH group 4- 26 Substitutive Nomenclature of Alcohols Substitutive Nomenclature of Alcohols OH 6-Methyl-3-heptanol CH3 CH CH3 5-Methyl-2-heptanol OH OH Dr. Wolf's CHM 201 & 202 4- 27 4.4 Classes of Alcohols and Alkyl Halides Dr. Wolf's CHM 201 & 202 4- 28 Classification Classification Alcohols and alkyl halides are classified as primary, 1o secondary, 2o tertiary, 3o according to their "degree of substitution." Degree of substitution is determined by counting the number of carbon atoms directly attached to the carbon that bears the halogen o...
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This document was uploaded on 01/03/2012.

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