title: Enantioselective Photocyclization of N-Alkylfuran-2-carboxyanilides to trans-Dihydrofuran Derivatives in Inclusion Crystals with Optically Active Host Compounds Derived from Tartaric Acid.
abstract: The steric course of the photocyclization reaction of the title achiral compounds (1) to optically active trans-dihydrofuran derivatives (2) was controlled by carrying out the reaction in inclusion crystals (4) with optically active hosts (3) derived from tartaric acid. The mechanism of the enantioselective reaction of 1 in 4 was studied by X-ray structural analysis of 4. In some cases, the steric course of the photoreaction was different depending on whether 4 was prepared by recrystallization or by mixing of 1 and 3.
authors.affiliation: Department of Applied Chemistry, Faculty of Engineering, Ehime University, Matsuyama, Ehime 790-8577, Department of Materials Sciences and Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, and Department of Materials Science, Hokkaido University of Education at Hakodate, Hakodate, Hokkaido 040-8567, Japan.
authors.forename: Fumio
authors.initials: F
authors.lastname: Toda
authors.forename: Hisakazu
authors.initials: H
authors.lastname: Miyamoto
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Kanemoto
authors.forename: Kiyoaki
authors.initials: K
authors.lastname: Tanaka
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Takahashi
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Takenaka