title: Exclusive photodimerization reactions of chromone-2-carboxylic esters depending on reaction media.
abstract: The irradiation of chromone-2-carboxylic esters resulted in the stereo- and regioselective formation of C(2) chiral anti-HH dimers from the triplet excited state. On the contrary, photolysis in the solid-state gave anti-HT dimers exclusively controlled by molecular arrangement in the crystal.
authors.affiliation: Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan. sakamotom@faculty.chiba-u.jp
authors.forename: Masami
authors.initials: M
authors.lastname: Sakamoto
authors.forename: Fumitoshi
authors.initials: F
authors.lastname: Yagishita
authors.forename: Masayuki
authors.initials: M
authors.lastname: Kanehiro
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Kasashima
authors.forename: Takashi
authors.initials: T
authors.lastname: Mino
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Fujita