A. Watanabe et al., X-ray structures of a pair of atropisomers of 1-(3 '-substituted benzoyl)-2-naphthylindolines and some comments, HETEROCYCLE, 53(1), 2000, pp. 1-6
A pair of atropisomers due to restricted rotation about C(sp)3-C(sp)2 bond
for 1-(3'-nitrobenzoyl)-2-(2 "-hydroxynaphthyl)-3,3-dimethylindoline was is
olated. The conformational analysis of both isomers was performed based on
the crystallographic and H-1-NMR spectral data.