The structural formula and IUPAC names of the alkynes having the molecular formula C 5 H 8 are to be written. Concept introduction: The alkyne corresponding to the longest continuous chain that includes the triple bond is considered the parent, and the chain is numbered in the direction that gives the triply bonded carbons their lower numbers. The suffix -yne is used to indicate the presence of a triple bond. The position of the triple bond is indicated by writing the smaller number in the name out of the two triple bonded carbon atoms. Substituents are indicated by writing their numbers in the name.

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Chapter 9.2, Problem 2P

Interpretation Introduction

Interpretation:

The structural formula and IUPAC names of the alkynes having the molecular formula C5H8 are to be written.

Concept introduction:

The alkyne corresponding to the longest continuous chain that includes the triple bond is considered the parent, and the chain is numbered in the direction that gives the triply bonded carbons their lower numbers. The suffix -yne is used to indicate the presence of a triple bond.

The position of the triple bond is indicated by writing the smaller number in the name out of the two triple bonded carbon atoms.

Substituents are indicated by writing their numbers in the name.

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