title: Asymmetric intramolecular cyclobutane formation via photochemical reaction of N,N-diallyl-2-quinolone-3-carboxamide using a chiral crystalline environment.
abstract: Crystal structures and photochemical reactions of three N,N-diallyl-2-quinolone-3-carboxamides were investigated. One quinolonecarboxamide afforded chiral crystals of a P2(1) crystal system by spontaneous crystallization, and the molecular chirality in the crystal was effectively transferred to cyclobutane in 96% ee by an intramolecular 2 + 2 photocycloaddition reaction in the solid state.
authors: Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
authors: Fumitoshi
authors: F
authors: Yagishita
authors: Masami
authors: M
authors: Sakamoto
authors: Takashi
authors: T
authors: Mino
authors: Tsutomu
authors: T
authors: Fujita