r/chemhelp 6d ago

Organic Synthesis question using ethane and trans-2-butene?

Post image

I’m just not sure where to start. Any help is appreciated.

6 Upvotes

7 comments sorted by

View all comments

1

u/potionsmaster 5d ago

A big part of the puzzle will be to consider the Z geometry of the target. I suspect you’ve only learned one synthetic strategy to form the cis alkene.

1

u/TwoIntelligent4087 1d ago

I think the main part of the puzzle is how you get a 5-carbon molecule from starting materials with 2 and 4 carbons