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A formal [3 + 3] cycloaddition reaction. Improved reactivity using alpha,beta-unsaturated iminium salts and evidence for reversibility of 6pi-electron electrocyclic ring closure of 1-oxatrienes.
Shen HC, Wang J, Cole KP, McLaughlin MJ, Morgan CD, Douglas CJ, Hsung RP, Coverdale HA, Gerasyuto AI, Hahn JM, Liu J, Sklenicka HM, Wei LL, Zehnder LR, Zificsak CA. Shen HC, et al. Among authors: liu j. J Org Chem. 2003 Mar 7;68(5):1729-35. doi: 10.1021/jo020688t. J Org Chem. 2003. PMID: 12608785
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