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Chapter 11: Q23. (page 448)

Question: Give the IUPAC name for each compound.

a.

b.

Short Answer

Expert verified

Answer

a. 3-ethyl-3-methyl-1-hexyne.

b. 11-methyl-dodec-3,5-diyne

Step by step solution

01

Step-by-Step Solution Step 1: IUPAC Nomenclature

IUPAC stands for International Union of Pure and Applied Chemistry. It is a standard set of rules used to name organic compounds.

02

Naming the given compounds

a.

The given compound is expressed in skeletal formula:

Skeletal structure of compound a with the carbons numbered

Since the numbering has to start from the highest priority group, the triple bonded carbon is numbered as 1. Accordingly, the IUPAC nomenclature of the compound is 3-ethyl-3-methyl-1-hexyne.

b.

The given compound is expressed in skeletal formula:

Skeletal structure of compound b with the carbons numbered

The compound is a diyne. The IUPAC nomenclature of the compound is 11-methyl-dodec-3,5-diyne.

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Most popular questions from this chapter

Question: Give the structure corresponding to each name. '

a. 5,6-dimethylhept-2-yne

b. 5-tert-butyl-6,6-dimethylnon-3-yne

c. (S)-4-chloropent-2-yne

d. cis-1-ethynyl-2-methylcyclopentane

e. 3,4-dimethylocta-1,5-diyne

f. (Z)-6-methyloct-6-en-1-yne

Question: Treatment of 2,2-dibromobutane with two equivalents of strong base affords but-1-yne and but-2-yne, as well as a small amount of buta-1,2-diene. Draw a mechanism showing how each compound is formed. Which alkyne should be the major product?

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

Question: Devise a synthesis of each compound. You may use HC≡CH , ethylene oxide, and alkyl halides as organic starting materials and any inorganic reagents.


a.

b.

Question: What steps are needed to prepare phenylacetylene, C6H5C≡CH, from each compound:

a.C6H5CH2CHBr2b.C6H5CHBrCH3c.C6H5CH2CH2OH
See all solutions

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