[cubane]

I'm sure a lot of you here have come across the cubane synthesis during your time with organic chemistry  so my question to follow will have roots in that synthesis, however I must add a disclaimer: this is purely theory, do not worry about reaction rates- if it works on paper, it'll be sufficient here.

I'm trying to propose a synthesis route for a tesseract. I figure the most plausible route would be to create a cubane molecule with leaving group molecules in place of where would normally be hydrogen's. My question to you veterans, what could be used to come in and kick out the leaving groups THEN bond with one another?! Right now I've been investigating organometallics, but perhaps I'm going down a dead end. SO basically, what is a good enough nucleophile that has stable bond lengths twice that of C-C and can form four bonds???

Props in advance to anyone willing to offer suggestions to this trivial post...

[macman104]

So, you want a cubane in the middle, and then something else around the outside correct?

I don't know if you are going to have much luck, there is going to be a lot of strain.  Even the large iodine atoms, don't have a bond length double that of C-C.

Maybe some sort of organotin or something?