Controlling the photochemical reactions of alkenes by light-path length effects of a microchannel reactor

T Yamashita, S Matsushita, T Nagatomo…

Index: Yamashita, Toshiaki; Matsushita, Shuhei; Nagatomo, Takuya; Yamauchi, Ryosuke; Yasuda, Masahide Research on Chemical Intermediates, 2013 , vol. 39, # 1 p. 111 - 126

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Citation Number: 3

Abstract

Abstract Photoirradiation of Me 2 CO–H 2 O 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 Me 2 CO–H 2 O 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 ...