Answer to Question #36853 in Organic Chemistry for bhawna

Question

A carbanion formed by 3 membered or 4 memebered ring are more stable than acyclic counterpart. Why ?

Answer 1

The C-H bond in the strained cycles has more s-character and thus lower energy. Occurrence of negative charge on the lower energy orbital is more preferable, hence the stability of such carbanions is higher.