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- Title
Controlling the photochemical reactions of alkenes by light-path length effects of a microchannel reactor.
- Authors
Yamashita, Toshiaki; Matsushita, Shuhei; Nagatomo, Takuya; Yamauchi, Ryosuke; Yasuda, Masahide
- Abstract
Photoirradiation of MeCO-HO solution of pent-4-en-1-ol ( 1a) with a high-pressure mercury lamp in a test tube gave 8-hydroxyoctan-2-one ( 3a) in 66 % yield along with oxetane ( 4a) and the isomer ( 4a′) in 10 % yield. Irradiation of the running MeCO-HO solution of 1a in the flow system of a microchannel reactor (MCR) gave mainly 4a. The photoreaction of 1,1-diphenylethene ( 2a) with triethylamine gave a Markovnikov-type adduct ( 5a) and an anti-Markovnikov-type adduct ( 6a). The use of the MCR enhanced the production of 5a. These phenomena were explained by the light-path length effects of the MCR.
- Subjects
PHOTOCHEMISTRY; MICROREACTORS; PHOTOADDITION; ALIPHATIC amines; ALKENES; ACETONE; CHEMICAL reactions
- Publication
Research on Chemical Intermediates, 2013, Vol 39, Issue 1, p111
- ISSN
0922-6168
- Publication type
Article
- DOI
10.1007/s11164-012-0636-4