Organic Chemistry Some Basic Principles and Techniques - Result Question 13
####14. IUPAC name of the following is
[2002]
$CH_2=CH-CH_2-CH_2-C \equiv CH$
(a) 1,5-hexenyne
(b) 1-hexene-5-yne
(c) 1-hexyne-5-ene
(d) 1,5-hexynene
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Solution:
- (b) The IUPAC name of
$\stackrel{1}{C} H_2=\stackrel{2}{C} H-\stackrel{3}{C} H_2-\stackrel{4}{C} H_2-\stackrel{5}{C} \equiv \stackrel{6}{C} H$
is Hex-1-en-5-yne or 1-hexene-5-yne
The lowest number is given to the $C=C$ double bond.
