Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1990-12-13
1992-04-28
Shah, Mukund J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
544 36, C07D27920
Patent
active
051091348
ABSTRACT:
A process for the direct and regioselective functionalization of phenothiazine which allows to introduce an SH group in position 2 by reaction with sulfur dioxide (SO.sub.2) and aluminum trichloride (AlCl.sub.3) with subsequent reduction is described.
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Datlow Philip I.
Shah Mukund J.
Zambon Group S.p.A.
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