86818-41-9Relevant academic research and scientific papers
One-pot regioselective annulation toward 3,4-dihydro-3-oxo-2H-1,4-benzoxazine scaffolds under controlled microwave heating
Feng, Gaofeng,Wu, Jinlong,Dai, Wei-Min
, p. 4635 - 4642 (2007/10/03)
An efficient and general synthesis of 2-alkyl-3,4-dihydro-3-oxo-2H-1,4-benzoxazines under controlled microwave heating has been established. It consists of a microwave-assisted reductive N-arylmethylation of substituted 2-aminophenols with aromatic aldehy
Nitrogen-containing compound
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, (2008/06/13)
A novel nitrogen-containing compound capable of preventing hardening of blood vessels by controlling formation of peroxide lipids in cell membranes, which is valuable as an anti-arteriosclerotic agent, is disclosed.
Synthesis of 3-Substitued Benzoxazoline-2-thiones
Yamato, Masatoshi,Takeuchi, Yasuo,Hashigaki, Kuniko,Hattori, Kyoko,Muroga, Eiko,Hirota, Takashi
, p. 1733 - 1737 (2007/10/02)
Several methods for the preparation of 3-substitued benzoxazoline-2-hiones (1) were examined.Method B via the thiation of 3-substitued benzoxazoline-2-one (5) with phosphorus pentasulfide was found to be applicable to the preparation of most analogs of 1, with a few expections.Method C via the cyclization of 2-(alkylamino)phenol (7) with potassium O-methyldithiocarbonate was suitable for the preparation of analogs with a group sensitive to high temperature of with an aryl- (including aromatic heterocyclic ring) methyl group.In addition, the reaction of benzoxazoline-2-thione (2) with acetals such as 1-ethoxyisochroman, 2-ethoxytetrahydrofuran, and ethoxytetraydropyran, or with Michael acceptors such as 2,3-dihydrofuran and 2H-3,4-dihydropyran, gave 3-substitued benzoxazoline-2-thione (1d-f).
Synthetic Control by Internal Interaction. The Intramolecular Diels-Alder Reactions of Furan Derivatives and α,β-Unsaturated Amides
Takebayashi, Toyonori,Iwasawa, Nobuharu,Mukaiyama, Teruaki
, p. 1107 - 1112 (2007/10/02)
An efficient method for the acceleration of the intramolecular Diels-Alder reaction was established utilizing the internal interaction - the internal hydrogen bonding and the internal coordination of a magnesium salt. The intramolecular Diels-Alder reacti
