DE1967049A1 - Verfahren zur herstellung von 4-(pyridyl)-tetrahydropyranen - Google Patents
Verfahren zur herstellung von 4-(pyridyl)-tetrahydropyranenInfo
- Publication number
- DE1967049A1 DE1967049A1 DE19691967049 DE1967049A DE1967049A1 DE 1967049 A1 DE1967049 A1 DE 1967049A1 DE 19691967049 DE19691967049 DE 19691967049 DE 1967049 A DE1967049 A DE 1967049A DE 1967049 A1 DE1967049 A1 DE 1967049A1
- Authority
- DE
- Germany
- Prior art keywords
- pyridyl
- tetrahydropyran
- tetrahydropyrans
- preparation
- alkali metal
- Prior art date
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
- C07D213/22—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom containing two or more pyridine rings directly linked together, e.g. bipyridyl
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/28—Radicals substituted by singly-bound oxygen or sulphur atoms
- C07D213/30—Oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/28—Radicals substituted by singly-bound oxygen or sulphur atoms
- C07D213/32—Sulfur atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/36—Radicals substituted by singly-bound nitrogen atoms
- C07D213/38—Radicals substituted by singly-bound nitrogen atoms having only hydrogen or hydrocarbon radicals attached to the substituent nitrogen atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/44—Radicals substituted by doubly-bound oxygen, sulfur, or nitrogen atoms, or by two such atoms singly-bound to the same carbon atom
- C07D213/46—Oxygen atoms
- C07D213/51—Acetal radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/54—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/56—Amides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Description
Flappe 23929 - Dr. K/by
IGI Case HD 22902 C
IGI Case HD 22902 C
IHPERIAL CHEMICAL INDUSTRIES LTD.
London, Großbritannien
London, Großbritannien
"Verfahren zur Herstellung von 4-(Pyridyl)-tetrahydropyranen"
Die Erfindung bezieht sich, auf Pyridinderivate und deren Herstellung
und insbesondere auf neue substituierte Pyridine sowie
auf ein Verfahren zur Herstellung von substituierten 'Pjridinen.
, ;
Gemäß der Erfindung werden als. neue Verbindungen 4-(Pyridyl)-tetrahydropyrane
vorgeschlagen. Die. Tetrahydropyranylgruppe
kann an das. Kohlenstoffatom in der 2-, 3- oder 4--S te llung
des Pyridinkerns gebunden sein.
kann an das. Kohlenstoffatom in der 2-, 3- oder 4--S te llung
des Pyridinkerns gebunden sein.
609845/0993
Unsubstituierte 4-(Pyridyl tetrahydropyrane besitzen die folgende
allgemeine Strukturformel:
In den Bereich der Erfindung fallen auch Verbindungen, die
diese Grundformel aufweisen, aber ein oder mehrere Substituenten enthalten, wie z.B. Alkyl- oder Alkoxy gruppen im Pyridylkern
und/oder Tetrahydropyranylkern.
4—(Pyridyl)tetrahydropyrane können dadurch hergestellt werden,
daß man einen 2l-Halogenäthyl-3-(pyridyl)propyläther mit
einer aktiven Alkalimetallverbindung umsetzt. Die Reaktionsteilnehmer werden vorzugsweise in äquimolaren Mengen und vorzugsweise
bei einer Temperatur im Bereich von -10 bis -800C in Lösung in einem flüssigen Ammoniak enthaltenden Medium umgesetzt.
Jedoch kann die Reaktion in Abwesenheit eines Lösungsmittels
oder in anderen Lösungsmitteln als flüssigem Ammoniak ausgeführt werden, beispielsweise in Kohlenwasserstoffen und
Äthern, in welchen Fällen höhere Temperatüren, beispielsweise
bis zu 4-00C, verwendet werden können. Höhere Temperaturen können
auch dadurch erreicht werden, daß man die Reaktion unter überatmosphärischem Druck ausführt. Die bevorzugten aktiven
Alkalimetallverbindungen sind Alkalimetallamide, insbesondere Natriumamid.
Das 4—(Pyridyl)tetrahydropyran kann aus dem Reaktionsgemisch
durch herkömmliche Techniken isoliert werden, beispielsweise
dadurch, daß man den Metallamidüberschuß durch Zusatz eines
Ammoniumsalzes zerstört, das resultierende-Produkt mit einem
organischen Lösungsmittel, das bei gewöhnlichen Temperaturen
flüssig ist, wie z.B. Äther, extrahiert, die organische Schicht mit Wasser wäscht und das organische Lösungsmittel
und das Produkt durch Destillation trennt.
_ 2 ■■--■'-■ ■. ■' -
Die durch das erfindungs gemäße Terfahren lierge st ell tea
4-(Pyridyl)tetrahydropyrane können in .-
das entsprechende Bipyridyl durch Umsetzung mit Ammoniak in
der Dampfphase überführt werden. Die Seaktion wird vorzugsweise in Gegenwart von molekularem Sauerstoff ausgeführt.
Die Erfindung wird durch das folgende Beispiel näher erläutert:
. -.■,.■■"■■--".·.".-,.■■ .-■"._ .0.."; :; ....'.."■' -
BEISPIEL· -/ .'■"":"-;■
Zu 1 1 gerührtem flüssigem Ammoniak wurden 0,1 g Eis en (III)-nitrat
und dann 20,0 g Kaliummetall in 1 g wiegenden Stücken
während eines Zeitraums von 30 min zugegeben. Zur resultierenden Losung wurden 46,6 g gammä-Picolinτwährend eines Zeitraums
von 3 min zugesetzt, worauf sich eine tiefgelbe Farbe
entwickelte. -
Die Losung wurde zu einer gerührten Lösung von 72,0 g 2,2'-DiCchloroäthyl)äther
in Λ 1 flüssigem Ammoniak mit einer solchen
Geschwindigkeit (gesamte Zugabezeit 20 min) zugegeben,
daß keine gelbe Farbe bestehen blieb. Diese Lo&ung wurde mit
"Lösung A" bezeichnet.
Zu Λ 1 gerührtem flüssigem Ammoniak wurden 0,1 g Eisen(III)-nitrat
und dann 20,0 g Zaliummetall in Igwiegenden Stücken
während eines Zeitraums von 30min zugegeben. Die resultierende
Lösung wurde 20 min gerührt und zur Lösung A mit einer
solchen Geschwindigkeit zugegeben, daß sich nur eine blaßgelbe
Farbe entwickelte. Das Gemisch wurde 1 st- gerühmt, und
dann wurden 20 g Ammoniumchlorid langsam zugesetzt, worauf
noch 1 1 Äther zugegeben wurde» Das GemischI wurde auf Raumtemperatur
erwärmen gelassen, filtriert und mit Wasser gewaschen. Das Lösungsmittel wurde entfernt, und der Rückstand
wurde destilliert4 wobei 30 g 4-(4l-i^ridyl)tetrahydroKrran
mit den folgenden Eigenschaften erhalten wurden:
Siedepunkt 1-15-118°C/1 mm Hg
Schmelzpunkt 60-62°C
Infrarot V max (flüssiger Film) 3070, 3025, 2940, 2845,
1600, 1410, 1130, 1085, 990 und 900 cm""1
NMR C (CDCl3) 1,5, 2,85, 5,9, 6,5, 7,25, 8,25
(relative Intensitäten 2:2:2:2:1:4)
Massenspektrum: γ = 163,0998 (C10H15ITO hat j = 163,0997)
132,130, 119, 105, 92 und 78
Eine höher siedende Fraktion (5 g) wurde ebenfalls gesammelt
und als Bl-3-(W -pyridyl)prop-1-yläther mit einem Kp von 2150C/
1 mm Hg identifiziert.
In ähnlicher Weise wurde aus alpha-Picolin 4-(2'-Pyridyl)—
tetrahydropyran erhalten, das durch die folgenden Spektral—
daten identifiziert wurde: '
Massenspektrum: β = 163 (C10H15ITO hat j = 163)
In ähnlicher Weise wurde aus beta-Picolin 4-(3·-Pyridyl)tetrahydropyran
mit einem Fp von 34-00C erhalten, das durch die folgenden Spektraldaten identifiziert wurde:
Infrarot ν max (CCl4) 2950, 2850, 1460, 1440, 1430,
1375, 1120, 1090, 1020 und 900 cm"1
ITMRz; (CCl4) 1,5, 2,5, 2,8, 5,95, 6,5, ,7,2 und 8,25
(relative Intensitäten 2:1:1:2:2:1:4)
Massenspektrum: j = 163,1004 (C10H15NO hat Jf » 163,0997)
_ 4 ■ 6098 4570993
Claims (8)
- PATEITTAIf SPRÜCHE: : . -" =:'\1y Verfahren zur Herstellung eines, 4-(Pyridyl)tetrahydropyrans, dadurch gekerinzeichnet, daß man einen 2'-Halogenäthyl-3-(pyridyl)propyläther mit einer aktiven Alkalimetallverbindung umsetzt.
- 2. Verfahren nach Anspruch1, dadurch gekennzeichnet, daß die Reaktion bei einer Temperatur bis zu 400C ausgeführt wird. ■""-.".. "."--....."-.
- 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß eine Temperatur von -80 bis -1O0G verwendet wird,
- 4. Verfahren nach Anspruch T1. 2 oder 3» dadurch gekennzeichnet, daß die Reaktion in.flüssigem Ammoniak ausgeführt wird. "
- 5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß als aktive Alkalimetallverbindung ein AlkalimetaHamid verwendet wird. . :
- 6. Verfahren nach Anspruch 5i dadurch gekennzeichnet, daß Hatriumamid verwendet wird.
- 7« Verfahren nach einem der vorhergehenden. Ansprüche, dadurch gekennzeichnet, daß2l-Chloroäthyl-3-(p7ridyl)-propyläther verwendet wird..
- 8. 4-(A1-Pyridyl)-tetrahydropyran.9· 4-(3'-Pyridyl)-tetrahydropyran.. h-(2»-Pyridyl)-tetrahydropyran.8098AS/09'93
Applications Claiming Priority (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1300868 | 1968-03-18 | ||
GB46736/71A GB1268194A (en) | 1968-03-18 | 1968-03-18 | Pyridine derivatives and their manufacture |
GB2577368 | 1968-05-29 | ||
GB46739/71A GB1268196A (en) | 1968-03-18 | 1968-05-29 | Pyridine derivatives and their manufacture |
GB6071668 | 1968-12-20 | ||
GB6071468 | 1968-12-20 | ||
GB6071568 | 1968-12-20 | ||
GB4673771 | 1968-12-20 | ||
GB246/69A GB1268191A (en) | 1968-03-18 | 1969-01-02 | Process for the manufacture of bipyridyls |
US17417571A | 1971-08-23 | 1971-08-23 | |
US412093A US3873555A (en) | 1968-03-18 | 1973-11-02 | Process for the manufacture of bipyridyls |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1967049A1 true DE1967049A1 (de) | 1976-11-04 |
Family
ID=27581625
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19691967049 Withdrawn DE1967049A1 (de) | 1968-03-18 | 1969-03-18 | Verfahren zur herstellung von 4-(pyridyl)-tetrahydropyranen |
DE1913732A Expired DE1913732C3 (de) | 1968-03-18 | 1969-03-18 | Verfahren zur Herstellung von Bipyridylen |
DE1967047A Expired DE1967047C3 (de) | 1968-03-18 | 1969-03-18 | Verfahren zur Herstellung von Bipyridylen |
DE19691967048 Withdrawn DE1967048A1 (de) | 1968-03-18 | 1969-03-18 | Verfahren zur herstellung von 4-(pyridyl)-tetrahydropyranen |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1913732A Expired DE1913732C3 (de) | 1968-03-18 | 1969-03-18 | Verfahren zur Herstellung von Bipyridylen |
DE1967047A Expired DE1967047C3 (de) | 1968-03-18 | 1969-03-18 | Verfahren zur Herstellung von Bipyridylen |
DE19691967048 Withdrawn DE1967048A1 (de) | 1968-03-18 | 1969-03-18 | Verfahren zur herstellung von 4-(pyridyl)-tetrahydropyranen |
Country Status (9)
Country | Link |
---|---|
US (2) | US3651071A (de) |
AT (5) | AT295535B (de) |
BE (1) | BE729987A (de) |
CH (6) | CH540255A (de) |
DE (4) | DE1967049A1 (de) |
FR (1) | FR2004163A1 (de) |
GB (4) | GB1268194A (de) |
NL (1) | NL167689C (de) |
SE (2) | SE394111B (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03135978A (ja) * | 1989-08-08 | 1991-06-10 | Merck Sharp & Dohme Ltd | 置換ピリジン、その製法、処方並びに痴呆症における使用法 |
DE19536652A1 (de) * | 1995-09-30 | 1997-04-10 | Judit Kirschke | Kompresse zur Wärmetherapie unter Verwendung von temperaturregulierendem und/oder heilendem und/oder beschwerdelinderndem Material |
JP4603646B2 (ja) * | 1999-11-15 | 2010-12-22 | 富士フイルムファインケミカルズ株式会社 | 新規なジピリジル誘導体 |
DE602005023279D1 (de) | 2004-03-02 | 2010-10-14 | Dainippon Sumitomo Pharma Co | Benzothiazin-3-one verbindung und zwischenprodukt dafür |
JP5235947B2 (ja) * | 2010-07-30 | 2013-07-10 | 富士フイルムファインケミカルズ株式会社 | 新規なジピリジル誘導体 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL131727C (de) * | 1963-08-08 | 1900-01-01 |
-
1968
- 1968-03-18 GB GB46736/71A patent/GB1268194A/en not_active Expired
- 1968-05-29 GB GB46739/71A patent/GB1268196A/en not_active Expired
- 1968-12-20 GB GB46738/71A patent/GB1268195A/en not_active Expired
-
1969
- 1969-01-02 GB GB246/69A patent/GB1268191A/en not_active Expired
- 1969-03-06 US US804993A patent/US3651071A/en not_active Expired - Lifetime
- 1969-03-14 NL NL6903976A patent/NL167689C/xx not_active IP Right Cessation
- 1969-03-17 BE BE729987D patent/BE729987A/xx unknown
- 1969-03-17 SE SE7211045A patent/SE394111B/xx unknown
- 1969-03-17 SE SE7211047A patent/SE392468B/xx unknown
- 1969-03-18 CH CH32972A patent/CH540255A/de not_active IP Right Cessation
- 1969-03-18 DE DE19691967049 patent/DE1967049A1/de not_active Withdrawn
- 1969-03-18 CH CH407069A patent/CH532051A/de not_active IP Right Cessation
- 1969-03-18 AT AT422870A patent/AT295535B/de not_active IP Right Cessation
- 1969-03-18 DE DE1913732A patent/DE1913732C3/de not_active Expired
- 1969-03-18 AT AT423070A patent/AT292705B/de not_active IP Right Cessation
- 1969-03-18 FR FR6907702A patent/FR2004163A1/fr not_active Withdrawn
- 1969-03-18 DE DE1967047A patent/DE1967047C3/de not_active Expired
- 1969-03-18 AT AT266969A patent/AT289797B/de not_active IP Right Cessation
- 1969-03-18 CH CH33172A patent/CH542222A/de not_active IP Right Cessation
- 1969-03-18 CH CH33272A patent/CH538506A/de not_active IP Right Cessation
- 1969-03-18 CH CH1745072A patent/CH540910A/de not_active IP Right Cessation
- 1969-03-18 AT AT422970A patent/AT292704B/de not_active IP Right Cessation
- 1969-03-18 DE DE19691967048 patent/DE1967048A1/de not_active Withdrawn
- 1969-03-18 AT AT423170A patent/AT292706B/de not_active IP Right Cessation
- 1969-03-18 CH CH33372A patent/CH530997A/de not_active IP Right Cessation
-
1973
- 1973-11-02 US US412093A patent/US3873555A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CH542222A (de) | 1973-11-15 |
CH530997A (de) | 1972-11-30 |
CH538506A (de) | 1973-08-15 |
NL167689B (nl) | 1981-08-17 |
US3651071A (en) | 1972-03-21 |
GB1268196A (en) | 1972-03-22 |
GB1268191A (en) | 1972-03-22 |
AT289797B (de) | 1971-05-10 |
DE1913732C3 (de) | 1982-04-15 |
SE394111B (sv) | 1977-06-06 |
AT292704B (de) | 1971-09-10 |
DE1913732B2 (de) | 1981-04-02 |
SE392468B (sv) | 1977-03-28 |
AT292705B (de) | 1971-09-10 |
DE1967047A1 (de) | 1976-10-07 |
AT295535B (de) | 1972-01-10 |
CH540255A (de) | 1973-10-15 |
DE1967047B2 (de) | 1980-05-14 |
DE1967048A1 (de) | 1976-11-04 |
GB1268194A (en) | 1972-03-22 |
DE1967047C3 (de) | 1981-01-22 |
BE729987A (de) | 1969-09-17 |
FR2004163A1 (de) | 1969-11-21 |
CH532051A (de) | 1972-12-31 |
NL167689C (nl) | 1982-01-18 |
NL6903976A (de) | 1969-09-22 |
AT292706B (de) | 1971-09-10 |
CH540910A (de) | 1973-10-15 |
GB1268195A (en) | 1972-03-22 |
US3873555A (en) | 1975-03-25 |
DE1913732A1 (de) | 1970-02-19 |
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