120029-30-3Relevant academic research and scientific papers
STRUCTURE AND TAUTOMERISM OF CYCLOPENTADIENE DERIVATIVES. VI. 3,3-SIGMATROPIC SHIFTS OF ACYLOXY GROUPS AROUND THE PERIMETER OF THE CYCLOPENTADIENE RING AND THEIR CATALYSIS BY Hg(II) AND Pd(II) SALTS
Dushenko, G. A.,Mikhailov, I. E.,Kamenetskaya, I. A.,Skachkov, R. V.,Zhunke, A.,et al.
, p. 1559 - 1564 (2007/10/03)
The 3,3-sigmatropic shifts of the acyloxy groups around the perimeter of the ring in p-tolyl-, and benzyltetraphenylcyclopentadiene take place with activation barriers ΔG25 deg C(excit.) of 26.0-34.8 kcal/mmole.The rate of the rearrangements increases both with the introduction of electron-withdrawing substituents into the migrant and in the presence of Hg(II) and Pd(II) salts.
