What is the correct IUPAC name of the following compound?

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A) 1-chloro-6-methylhept-7-en-2-yne
B) 7-chloro-2-methylhept-1-en-5-yne
C) 1-chloro-6-methylhept-6-en-2-yne
D) 7-chloro-2-methylhept-2-en-5-yne

1 Answer
Apr 26, 2018

We want the parent chain to contain the (i) alkene and alkyne functional groups, and (ii) be the longest chain.

Alkenes have priority over alkynes, so the alkene group will have the lower locant number.

Hence, the answer is #("c").#