Organic Chemistry Basics - Result Question 147
####1. The IUPAC name for the following compound is
(a) 3-methyl-4-(3-methylprop-1-enyl)-1-heptyne
(b) 3, 5-dimethyl-4-propylhept-6-en-1-yne
(c) 3-methyl-4-(1-methylprop-2-ynyl)-1-heptene
(d) 3, 5-dimethyl-4-propylhept-1-en-6-yne
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Answer:
Correct Answer: 1. (d)
Solution:
- The IUPAC name for the given compound is 3, 5-dimethyl-4-propylhept-1-en-6-yne.
If both double and triple bonds are present in the compound, the endings like-en-yne, a (numeral) dien-(numeral)-yne etc., are used. Numbers as low as possible are given to double and triple bonds as a set.
