I need a help with understanding this mechanisam. Why do we need to dissolve Compound 2 in the Et2O, what is happing and why do we add nBuli and then stirred the mixture for 3 h? Why do we add THF separately and then stirred for 1 h? Why do we add 1,2-dibrimotetrachloroethane ? And what about eq?
Thanks in advance!
P.S. see attachment