The discussion focuses on the reaction mechanism of 1-bromo-2-propanone treated with vinyl lithium, specifically addressing the addition of the organolithium reagent to the carbonyl group. Participants clarify that 1-bromo-3-propanone is not a valid molecule, as propane only contains three carbons, making it impossible for a carbonyl to exist on the third carbon. The correct structure is identified as 1-bromo-2-propanone, and it is emphasized that the vinyl lithium acts similarly to butyllithium in terms of arrow-pushing mechanisms in organic chemistry.
PREREQUISITESChemistry students, organic chemists, and anyone studying reaction mechanisms involving organolithium reagents and carbonyl compounds.
I don't see the attachment.brake4country said:But, here is the reaction that I have determined so far, attached below.
This shouldn't matter. Just treat the organolithium compound as approximately R-Li+, with R = vinyl, and just do the same type of arrow-pushing you'd do with, e.g., butyllithium.brake4country said:I am having a hard time understanding how it attaches to the carbonyl since it is sp2 hybridized.