Cyclization of terphenyl-bisfluorenol a mechanistic study of the regioselectvity

Abstract : The mechanism of the bicyclization reaction of a series of terphenyl-bisfluorenols into dispiro[fluorene-9,6'-indeno[1,2-b]fluorene-12',9''-fluorene] and dispiro[fluorene-9,6'-indeno[2,1-a]fluorene-12',9''-fluorene] is reported. Through a combined experimental and theoretical study, the different parameters that drive the regioselectivity of this cyclization reaction have been studied and are presented.
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Cyril Poriel, Frédéric Barrière, Joëlle Rault-Berthelot, Damien Thirion. Cyclization of terphenyl-bisfluorenol a mechanistic study of the regioselectvity. Chemistry - A European Journal, Wiley-VCH Verlag, In press, 25 (45), pp.10689-10697. ⟨10.1002/chem.201901457⟩. ⟨hal-02150454⟩

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