2π + 4π Cycloadditions of carbocation activated allenes
摘要:
Boron trifluoride etherate opening of an allenic acetal produced an allene which was strongly activated by the alpha-carbocation to undergo 2-pi + 4-pi cycloaddition reactions.
2π + 4π Cycloadditions of carbocation activated allenes
摘要:
Boron trifluoride etherate opening of an allenic acetal produced an allene which was strongly activated by the alpha-carbocation to undergo 2-pi + 4-pi cycloaddition reactions.