SEARCH Articles Figures Tables Amino acids esters, chelation-controlled Claisen rearrangement Chelation Controlled Aza-Claisen Rearrangements Claisen rearrangement stereochemical control Ireland-Claisen rearrangement control Rearrangement chelation controlled Rearrangement chelation-controlled Ireland Rearrangement with Stereochemical Control Symmetry controlled reactions sigmatropic rearrangements Thermodynamic control Fries rearrangement