Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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Filing date
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Application filed by IG Farbenindustrie AGfiledCriticalIG Farbenindustrie AG
Application grantedgrantedCritical
Publication of FR802157ApublicationCriticalpatent/FR802157A/fr
C07D221/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
C07D221/02—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 condensed with carbocyclic rings or ring systems
C07D221/04—Ortho- or peri-condensed ring systems
C07D221/18—Ring systems of four or more rings
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
FR802157D1935-03-111936-02-21Procédé pour préparer des beta-aza-benzanthrones
ExpiredFR802157A
(fr)