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Pendular rearrangement of epimeric 3b,4,4a,5-tetramethyl-3b,4,4a,5-tetrahydro-4H-cyclopropa[a]phenalen-5-yl cations

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Abstract

The kinetics of degenerate pendular rearrangement of 3b,exo-4,4a,5-tetramethyl-3b,4,4a,5-tetrahydro-4H-cyclopropa[a]phenalen-5-yl cation and its endo epimer, generated under conditions ensuring their long life, were studied by dynamic NMR spectroscopy. The rearrangement mechanism is discussed with account taken of the results of quantum-chemical calculations and published data for related rearrangements.

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Correspondence to V. A. Bushmelev.

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Dedicated to the memory of Full Member of the Academy of Sciences of the USSR N.N. Vorozhtsov on the 100th anniversary of his birth

Original Russian Text © V.A. Bushmelev, A.M. Genaev, G.E. Sal’nikov, V.G. Shubin, 2007, published in Zhurnal Organicheskoi Khimii, 2007, Vol. 43, No. 11, pp. 1659–1663.

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Bushmelev, V.A., Genaev, A.M., Sal’nikov, G.E. et al. Pendular rearrangement of epimeric 3b,4,4a,5-tetramethyl-3b,4,4a,5-tetrahydro-4H-cyclopropa[a]phenalen-5-yl cations. Russ J Org Chem 43, 1656–1660 (2007). https://doi.org/10.1134/S1070428007110127

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  • DOI: https://doi.org/10.1134/S1070428007110127

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