An efficient synthesis for the following transformation is to be determined. Concept introduction : One carbon atom must be added to the final product in this process. Because the carbon-carbon triple bond in the final product has taken the place of the carbon-carbon double bond in the starting material, there is also a change in the identity of a functional group . Alkenes can be converted to terminal alkynes by first being brominated and then being eliminated. and the resulting alkyne can be methylated to produce the desired product.

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Chapter 11.4, Problem 8ATS

Interpretation Introduction

Interpretation: An efficient synthesis for the following transformation is to be determined.

Concept introduction: One carbon atom must be added to the final product in this process. Because the carbon-carbon triple bond in the final product has taken the place of the carbon-carbon double bond in the starting material, there is also a change in the identity of a functional group. Alkenes can be converted to terminal alkynes by first being brominated and then being eliminated. and the resulting alkyne can be methylated to produce the desired product.

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