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- Title
Convenient Synthesis of 2-Amino-4 H-chromenes from Photochemically Generated o-Quinone Methides and Malononitrile.
- Authors
Fujiwara, Makoto; Sakamoto, Masanori; Komeyama, Kimihiro; Yoshida, Hiroto; Takaki, Ken
- Abstract
2-Amino-4 H-chromenes were synthesized in moderate to good yields by the reaction of o-quinone methides photochemically generated from o-(dimethylaminomethyl)phenols with malononitrile. This method was applicable to the synthesis of fluorinated chromenes that were difficult to obtain by other methods. In addition, o-(hydroxymethyl)phenols could be used for the reaction in the presence of tertiary amine bases.
- Subjects
CHROMONES; HETEROCYCLIC compounds synthesis; PHOTOCHEMISTRY; QUINONE methides; MALONONITRILE; CHEMICAL reactions
- Publication
Journal of Heterocyclic Chemistry, 2015, Vol 52, Issue 1, p59
- ISSN
0022-152X
- Publication type
Article
- DOI
10.1002/jhet.1964