Single-crystal-to-single-crystal photocyclization of 4-(2,4,6-triisopropylbenzoyl)benzoic acid in the salt crystal with (S)-phenylethylamine |
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| Authors: | Hideko Koshima Yuya Ide Kotaro Fujii |
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| Affiliation: | a Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
b Department of Chemistry and Materials Science, Tokyo Institute of Technology, O-Okayama, Meguro-ku, Tokyo 152-8551, Japan |
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| Abstract: | Ultraviolet irradiation of a salt crystal of 4-(2,4,6-triisopropylbenzoyl)benzoic acid with (S)-phenylethylamine promoted single-crystal-to-single-crystal photocyclization to give an enantiopure (R,R)-cyclopentenol and almost racemic cyclobutenol. The reaction paths were elucidated by X-ray crystallographic analysis of the crystal before and after irradiation. |
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