alkanes - CH4 GHQ-CH3 methane ethane CHa-CHz-CHa propane...

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Unformatted text preview: CH4 GHQ-CH3 methane ethane CHa-CHz-CHa propane CH3 H30~—CH—CH3 /\/ A iso-butane or 2-methylpropane HBO—CHQACHg-CHa alkyl groups (Fl) X : lunctional groups Haw many 7 sunsmamsv camensi Wtal lamly 2.3-dimethyl-6-(2—rnethyl- 4-einyiamemyinsptane pmpyimecane (1 rmemylpropyho/clobulane Nomenclature Rules Longest continuous carbon chain designates the parent compound The posrlion of subsiituents are designated by numbers; the parent alkane being numbered from one of its two ends. The numbering starts from the end that gives the substituent the lowest number. If two or more substituents are present. the numbering ol the parent alkane starts from the end which gives the lowest number The choice among parem chains ol equal length is in favor of the most highly substituted one. ll the same substituent occurs two or more times in a molecule. lhe prefix di, tn, tetra... is used ll two or more different substituents are attached to the parent compound, their sequence in naming. lollows alphabetical order. The substituents are arranged alphabetically regardless oi the number 01 each that are present. Common Alk lFra ents >+ isopropyl (1-methylethyl) Searbutyl lsnbutyl Hmtyl n-mstnylpvopyn (Zrmethylpmpylj (1.1-dimeihylethyl) Wflfi lsopenM neopemyi trpentyl or or lseamyl l~amy| (armelhylbutyll (2.2-dimethylprupyl) (Ll-dimetnylpropyl) ...
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