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Chapter 11: 3P (page 426)

Question. Give the structure corresponding to each of the following names.

a. trans-2-ethynylcyclopentanol

b. 4-tert-butyldec-5-yne

c. 3,3,5-trimethylcyclononyne

Short Answer

Expert verified

a.

b.

c.

Step by step solution

01

Structure of Alkynes

The following steps have to be followed while naming alkynes,

Find the parent name by choosing the longest carbon chain and give preference to the functional groups. Then add substituents to the appropriate carbon and the alkyne must be mentioned by the suffix -yne.

02

Molecular structures

a. The -OH group is placed on C1 with the ethyne group on C2.

Structure of trans-2-ethynylcyclopentanol

b. The tert-butyl group is located on C4 of the ten-carbon chain.

Structure of 4-tert-butyldec-5-yne

c. The alkyne group is located on C1 with two methyl groups on C3 and one on C5.

Structure of 3,3,5-trimethylcyclononyne

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Most popular questions from this chapter

Question: What acetylide anion and alkyl halide can be used to prepare each alkyne? Indicate all possibilities when more than one route will work.

a.

b.

c.

Draw additional resonance structures for each cation

(a)

(b)

(c)

Question: Draw the products formed when hex-1-yne is treated with each reagent.

Question: Draw the products formed in each reaction and indicate stereochemistry.

a.

b.

c.

d.

Draw the keto tautomer of each enol
See all solutions

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