title: Asymmetric Synthesis by Using Natural Sunlight under Absolute Achiral Conditions.
abstract: Irradiation of prochiral (E)-aroylacrylamide with sunlight gave single-handed pyrrolinone quantitatively and with an enantiomeric excess (ee) of over 99 % under absolutely achiral conditions. The phenomenon was explained by photoisomerization and reversible cyclization followed by dynamic crystallization involving deracemization.
authors.affiliation: Department of Applied Chemistry and Biotechnology, Graduate School of Engineering and Molecular Chirality Research Center, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.
authors.forename: Masami
authors.identifier: http://orcid.org/0000-0001-9489-2641
authors.initials: M
authors.lastname: Sakamoto
authors.affiliation: Department of Applied Chemistry and Biotechnology, Graduate School of Engineering and Molecular Chirality Research Center, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.
authors.forename: Koh
authors.initials: K
authors.lastname: Shiratsuki
authors.affiliation: Department of Applied Chemistry and Biotechnology, Graduate School of Engineering and Molecular Chirality Research Center, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.
authors.forename: Naohiro
authors.initials: N
authors.lastname: Uemura
authors.affiliation: Department of Applied Chemistry and Biotechnology, Graduate School of Engineering and Molecular Chirality Research Center, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Ishikawa
authors.affiliation: Department of Applied Chemistry and Biotechnology, Graduate School of Engineering and Molecular Chirality Research Center, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Yoshida
authors.affiliation: Education Center, Faculty of Engineering, Chiba Institute of Technology, Shibazono, Narashino, Chiba, 275-0023, Japan.
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Kasashima
authors.affiliation: Department of Applied Chemistry and Biotechnology, Graduate School of Engineering and Molecular Chirality Research Center, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Mino
keywords: asymmetric synthesis; chiral amplification; deracemization; dynamic crystallization; photoisomerization