... Rearrangement 71 Vinylation /Claisen Rearrangement 71 Allylation /Claisen Rearrangement 73 Anionic Cyclization /Claisen Rearrangement 74 Claisen Rearrangement/ Ene Reaction 75 Claisen Rearrangement/ Conia-Type... Claisen Rearrangements 483 Zwitterionic Aza -Claisen Rearrangements 490 Alkyne Carbonester Aza -Claisen Rearrangements 491 Ketene Aza -Claisen Rearrangements 494 Allene Carbonester Aza -Claisen Rearrangements... will use the historically exact name Claisen rearrangement Considering the widespread applications of the Claisen rearrangement, we should keep in mind that Mother Nature has been utilizing the aliphatic