Ozonides derived from terminal alkenes reacted with 1.3 molequiv. of stable phosphonium ylides to give (E)-α, β-unsaturated carbonyl compounds in good to excellent yields. No reducing agent is needed in the reaction. However, alkoxyalkyl-substituted ozonides afforded a mixture of (Z)-and (E)-α, β-unsaturated carbonyl compounds under similar condition. The E/Z isomeric ratio is affected by the position of the heteroatom in the ...
