How to convert ethene to but-1-yne?

[calm_cool]

Homework Statement

How is ethene converted to but-1-yne?

Homework Equations

Alkenes can be converted to alcohols or halides.

The Attempt at a Solution

Don't remember much of the conversions in Chemistry...really need the help!

 

[sjb-2812]

Homework Statement

How is ethene converted to but-1-yne?

Homework Equations

Alkenes can be converted to alcohols or halides.

The Attempt at a Solution

Don't remember much of the conversions in Chemistry...really need the help!

OK, how can you make alkynes?

 

[AGNuke]

First step would be to combine two units of ethene to form a 4 carbon backbone.

 

[Teemo]

You need to add two more carbons, so consider how you would have the ethene attack a 2 carbon halide while having a triple bond.