Examples of Nomenclature H,C=C一C=C-CH3CH,一CH一C=C-H CH一C=C-CH一CH,CH CH OH OCH, IUPAC name: 2-methyl-I-penten-3-yne 3-butyn-2-ol 4-methoxy-2-hexyne new IUPAC name: 2-methylpent-1-en-3-yne but-3-yn-2-ol 4-methoxyhex-2-yne Copyright 2010 Pearson Prentice Hall,Inc. All other functional groups,except ethers and halides have a higher priority than alkynes. Chapter 9 4 Chapter 9 4 Examples of Nomenclature • All other functional groups, except ethers and halides have a higher priority than alkynes