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Communication | Regular issue | Vol 19, No. 11, 1982, pp.2015-2018
Published online, 1st January, 1970
DOI: 10.3987/R-1982-11-2015
Hindered Rotation in 2-Arylindolines. Isolation of Diastereomeric Atropisomers

Takeo Kitamura, Toshitaka Koga, Kazunobu Harano, and Tanezo Taguchi

*Daiichi College of Pharmaceutical Sciences, 22-1 Tamagawa-cho, Minami-ku, Fukuoka 815-0037

Abstract

The condensation reaction of 1-(p-chlorobenzoyl)-2-hydroxy-3,3-dimethylindoline with β-naphthol gave a pair of diastereomeric atropisomers due to restricted rotation about an sp3-sp2 carbon bond.