Title of article :
Single-crystal-to-single-crystal photocyclization of 4-(2,4,6-triisopropylbenzoyl)benzoic acid in the salt crystal with (S)-phenylethylamine
Author/Authors :
Koshima، نويسنده , , Hideko and Ide، نويسنده , , Yuya and Fukano، نويسنده , , Michitaro and Fujii، نويسنده , , Kotaro and Uekusa، نويسنده , , Hidehiro، نويسنده ,
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.
