Examples C CH2-CH-CH2-CH-C=CH 4-methyl-1-hexen-5-yne OH CH3一C=C-CH2一CH-CH3 4-hexyn-2-ol 3> Chapter 9 6Chapter 9 6 Examples CH2 CH CH2 CH CH3 C CH 4-methyl-1-hexen-5-yne CH3 C C CH2 CH OH CH3 4-hexyn-2-ol =>