SYNTHESIS OF HETEROCYCLES : SYNTHESIS OF 4H-1,4-BENZOTHIAZINES
A new synthesis of fluorinated 4H-1,4-benzothiazines is being reported for the first time, obtained by condensing O-aminobenzenethiol with fluorinated β-diketones.An oxidative cyclisation mechanism, involving an intermolecular nucleophilic attack in an intermediate anamine system is suggested.
Soni, R. P.,Jain, M. L.
p. 3795 - 3796
(2007/10/02)
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