PL329827A1 - Method of obtaining 4-hydroxy-9h-carbazole - Google Patents

Method of obtaining 4-hydroxy-9h-carbazole

Info

Publication number
PL329827A1
PL329827A1 PL98329827A PL32982798A PL329827A1 PL 329827 A1 PL329827 A1 PL 329827A1 PL 98329827 A PL98329827 A PL 98329827A PL 32982798 A PL32982798 A PL 32982798A PL 329827 A1 PL329827 A1 PL 329827A1
Authority
PL
Poland
Prior art keywords
carbazole
hydroxy
obtaining
Prior art date
Application number
PL98329827A
Inventor
Zoltan Ratkai
Jozsef Barkoczy
Gabor Szenasi
Gyula Simig
Tamas Gregor
VERECZKEY Gyorgyi DONATH
Norbert Nemeth
Kalman Nagy
Tibor Szabo
Laszlo Balazs
Imre Doman
Zoltan Greff
Nagy Peter Kotay
Peter Seres
Original Assignee
Egyt Gyogyszervegyeszeti Gyar
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Egyt Gyogyszervegyeszeti Gyar filed Critical Egyt Gyogyszervegyeszeti Gyar
Publication of PL329827A1 publication Critical patent/PL329827A1/en

Links

PL98329827A 1997-11-24 1998-11-23 Method of obtaining 4-hydroxy-9h-carbazole PL329827A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU9702210A HU226794B1 (en) 1997-11-24 1997-11-24 Process for producing 4-hydroxy-carbasol

Publications (1)

Publication Number Publication Date
PL329827A1 true PL329827A1 (en) 1999-06-07

Family

ID=89995784

Family Applications (1)

Application Number Title Priority Date Filing Date
PL98329827A PL329827A1 (en) 1997-11-24 1998-11-23 Method of obtaining 4-hydroxy-9h-carbazole

Country Status (3)

Country Link
HU (1) HU226794B1 (en)
PL (1) PL329827A1 (en)
RU (1) RU2204551C2 (en)

Also Published As

Publication number Publication date
RU2204551C2 (en) 2003-05-20
HU9702210D0 (en) 1998-01-28
HUP9702210A2 (en) 1999-08-30
HUP9702210A3 (en) 1999-11-29
HU226794B1 (en) 2009-10-28

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Legal Events

Date Code Title Description
VOID Decisions declaring the decisions on the grant of the patent lapsed