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Updated: May 17, 2026

A Two-Step Protocol for Umpolung Functionalization of Ketones Via Enolonium Species
Published on: August 16, 2018
3-(9H-Fluoren-9-yl)-1,3-diphenyl-propan-1-one
Fu Feng1, Zhi-Cai Cui, Xin-Ping Liu
1School of Chemical and Environmental Engineering, Hubei University for Nationalities, Enshi, Hubei 445000, Peoples' Republic of China.
Abstract:
In the title compound, C(28)H(22)O, the fluorene ring system is approximately planar [maximum deviation = 0.044 (2) Å] and forms dihedral angles of 69.88 (6) and 89.46 (6)° with the phenyl rings. The crystal packing is stabilized by weak π-π stacking inter-actions, with centroid-centroid distances of 3.7172 (13) and 3.7827 (11) Å.
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