Return to Contents  Chapter 9 : Alkynes  Ch 9 contents

Preparation of Alkynes via Elimination reactions

elimination of vicinal dihalide to an alkyne
elimination of geminal dihalide to an alkyne
Reaction Type: Elimination (E2)

Summary

What is the alkyne product from the reactions of the following with NaNH2:
(a) 2,2-dibromopropane ANSWER (c) 1,2-dibromohexane ANSWER
(b) 1,1-dibromooctane ANSWER (d)  2,3-dibromohexane ANSWER

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organic chemistry © Dr. Ian Hunt, Department of Chemistry University of Calgary