A new asymmetric total synthesis of (-)-malyngolide is described. This synthesis is based on the originally developed catalytic asymmetric IMCP reaction; that is, α-diazo-β-keto sulfone (13) was successfully converted to cyclopropane (12) in 92 % yield with excellent enantioselectivity (97% ee), and cyclopropane (12) was successfully converted to (-)-malyngolide.