NL162640B - Werkwijze voor de bereiding van pyridinecarbonzuren. - Google Patents
Werkwijze voor de bereiding van pyridinecarbonzuren.Info
- Publication number
- NL162640B NL162640B NL6916844.A NL6916844A NL162640B NL 162640 B NL162640 B NL 162640B NL 6916844 A NL6916844 A NL 6916844A NL 162640 B NL162640 B NL 162640B
- Authority
- NL
- Netherlands
- Prior art keywords
- pyridinecarbonic
- acids
- preparation
- pyridinecarbonic acids
- Prior art date
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
- C07D213/60—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 hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/803—Processes of preparation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1668868A CH495990A (de) | 1968-11-08 | 1968-11-08 | Verfahren zur Herstellung von Pyridincarbonsäuren |
CH273269A CH504437A (de) | 1968-11-08 | 1969-02-24 | Verfahren zur Herstellung von Pyridincarbonsäuren |
CH862269A CH511848A (de) | 1968-11-08 | 1969-06-06 | Verfahren zur Herstellung von Pyridincarbonsäuren |
CH1175969A CH527193A (de) | 1968-11-08 | 1969-08-01 | Verfahren zur Herstellung von Pyridincarbonsäuren |
CH1416869A CH548394A (de) | 1969-09-19 | 1969-09-19 | Verfahren zur herstellung von pyridincarbonsaeuren. |
Publications (3)
Publication Number | Publication Date |
---|---|
NL6916844A NL6916844A (nl) | 1970-05-12 |
NL162640B true NL162640B (nl) | 1980-01-15 |
NL162640C NL162640C (nl) | 1980-06-16 |
Family
ID=27509078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL6916844.A NL162640C (nl) | 1968-11-08 | 1969-11-07 | Werkwijze voor de bereiding van pyridinecarbonzuren. |
Country Status (15)
Country | Link |
---|---|
US (1) | US3657259A (nl) |
AT (1) | AT293388B (nl) |
BE (1) | BE741373A (nl) |
DE (1) | DE1956117C3 (nl) |
DK (1) | DK126652B (nl) |
FR (1) | FR2030070A1 (nl) |
GB (1) | GB1222778A (nl) |
HU (1) | HU162275B (nl) |
IT (1) | IT1046927B (nl) |
NL (1) | NL162640C (nl) |
NO (1) | NO130114B (nl) |
PL (1) | PL80332B1 (nl) |
RO (1) | RO56145A (nl) |
SE (1) | SE379539B (nl) |
YU (1) | YU34402B (nl) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4001257A (en) * | 1972-12-02 | 1977-01-04 | Nippon Soda Company Limited | Process for producing nicotinic acid |
US5520828A (en) * | 1994-06-16 | 1996-05-28 | Lever Brothers Company, Division Of Conopco, Inc. | Fabric conditioners derived from pyridine carboxylic acids |
-
1969
- 1969-10-28 US US871951A patent/US3657259A/en not_active Expired - Lifetime
- 1969-11-05 YU YU2771/69A patent/YU34402B/xx unknown
- 1969-11-06 SE SE6915254A patent/SE379539B/xx unknown
- 1969-11-06 BE BE741373D patent/BE741373A/xx not_active IP Right Cessation
- 1969-11-06 HU HULO351A patent/HU162275B/hu unknown
- 1969-11-06 AT AT1043469A patent/AT293388B/de active
- 1969-11-06 DK DK587869AA patent/DK126652B/da not_active IP Right Cessation
- 1969-11-06 RO RO196961489A patent/RO56145A/ro unknown
- 1969-11-06 NO NO694398A patent/NO130114B/no unknown
- 1969-11-07 DE DE1956117A patent/DE1956117C3/de not_active Expired
- 1969-11-07 PL PL1969136745A patent/PL80332B1/pl unknown
- 1969-11-07 GB GB54683/69A patent/GB1222778A/en not_active Expired
- 1969-11-07 NL NL6916844.A patent/NL162640C/nl not_active IP Right Cessation
- 1969-11-07 FR FR6938523A patent/FR2030070A1/fr not_active Withdrawn
- 1969-11-08 IT IT6941288A patent/IT1046927B/it active
Also Published As
Publication number | Publication date |
---|---|
DE1956117B2 (de) | 1975-01-23 |
DK126652B (da) | 1973-08-06 |
DE1956117C3 (de) | 1975-09-04 |
BE741373A (nl) | 1970-04-16 |
NL162640C (nl) | 1980-06-16 |
SE379539B (nl) | 1975-10-13 |
NL6916844A (nl) | 1970-05-12 |
YU277169A (en) | 1978-12-31 |
NO130114B (nl) | 1974-07-08 |
AT293388B (de) | 1971-10-11 |
HU162275B (nl) | 1973-01-29 |
YU34402B (en) | 1979-07-10 |
DE1956117A1 (de) | 1970-06-11 |
FR2030070A1 (nl) | 1970-10-30 |
RO56145A (nl) | 1974-03-01 |
GB1222778A (en) | 1971-02-17 |
IT1046927B (it) | 1980-07-31 |
US3657259A (en) | 1972-04-18 |
PL80332B1 (en) | 1975-08-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee |