Some time ago I made two articles detailing the synthesis and reactions of the alkenes, which had an acceptable support, which encouraged me to investigate to make a new article of synthesis and reactions, but this time, of the alkynes. I hope it will be you useful.

To see the previous posts check here:

• Alkenes, part I
• Alkenes, part II

Synthesis of alkynes.

Metallic acetylides.

The alkynes with a triple bond in carbon 1º tend to lose a hydrogen. That carbon atom behaves as if it were more electronegative.
A hydrogen linked to a C 1 with triple bond can be displaced by metal atoms, forming acetylides.
The metal acetylides; they are organometallic compounds with a metal atom instead of the acetylenic hydrogen of a terminal alkyne.