Authors:
Akihiko Ouchi National Institute of Advanced Industrial Science and Technology (AIST) Ibaraki Tsukuba 305–8565, Japan

Search for other papers by Akihiko Ouchi in
Current site
Google Scholar
PubMed
Close
,
Takeshi Hyugano
Search for other papers by Takeshi Hyugano in
Current site
Google Scholar
PubMed
Close
,
Masayuki Kaneda
Search for other papers by Masayuki Kaneda in
Current site
Google Scholar
PubMed
Close
,
Toshiaki Suzuki
Search for other papers by Toshiaki Suzuki in
Current site
Google Scholar
PubMed
Close
, and
Chuanxiang Liu
Search for other papers by Chuanxiang Liu in
Current site
Google Scholar
PubMed
Close
Restricted access

A microchannel reactor was used for suppressing undesirable side reactions in a photochemical reaction. A two-step photolysis, flavone (1) → flavanone (2) → salicylic acid (3b), was conducted in a microchannel reactor using a two-phase photolysis, that is, 1 and NaBH4 were dissolved in immiscible H2O and hexane, respectively, and photolyses were conducted at their interface. The two-step photolysis product 3b was obtained as a major product. In contrast, photolysis in homogeneous EtOH solution gave flavanol (4) as a major product. The thermal side reaction 2 → 4 was suppressed completely by the interface photolysis, and a greater than 25-fold increase was observed in the selectivity of 3b.

Supplementary Materials

    • Supplementary Material
  • Collapse
  • Expand

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

Journal of Flow Chemistry
Language English
Size A4
Year of
Foundation
2011
Volumes
per Year
1
Issues
per Year
4
Founder Áramlásos Kémiai Tudományos Társaság
Founder's
Address
H-1031 Budapest, Hungary Záhony utca 7.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 2062-249X (Print)
ISSN 2063-0212 (Online)