HUT49323A - Process for producing azometin derivatives - Google Patents
Process for producing azometin derivativesInfo
- Publication number
- HUT49323A HUT49323A HU111288A HU111288A HUT49323A HU T49323 A HUT49323 A HU T49323A HU 111288 A HU111288 A HU 111288A HU 111288 A HU111288 A HU 111288A HU T49323 A HUT49323 A HU T49323A
- Authority
- HU
- Hungary
- Prior art keywords
- formula
- azometin
- derivatives
- producing
- dimethyl
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Hydrogenated Pyridines (AREA)
Abstract
(A)2-Nitrobenzylideneamine cpds. of formula (Ia) and trimers of formula (Ib) are new, where R=H or a gp. of formula R1 or R2. - Prodn. of dimethyl 1,4-dihydro-2,6-dimethyl-4 -(2-nitrophenyl)-3,5 -pyridinedicarboxylate of formula (II) is effected by (a) reacting (Ia) or (Ib) with methyl acetoacetate (III) in an inert solvent, opt. in the presence of methyl 3-aminocrotonate (IV), NH4X (X= 1-5C alkanoate, 1/2 CO3 2-, HCO3- or OH-) or NH3; or (b) reacting 2-nitrobenzaldehyde (V) with aq. NH4OH at 101-120 deg.C and 2-6 bar.
Priority Applications (30)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU881112A HU200320B (en) | 1988-03-08 | 1988-03-08 | Process for production of derivatives of azometine |
GR890100133A GR1002248B (en) | 1988-03-08 | 1989-02-28 | 1,4-dihydropyridine derivatives preparation method |
CH799/89A CH677490A5 (en) | 1988-03-08 | 1989-03-03 | |
YU46689A YU47689B (en) | 1988-03-08 | 1989-03-06 | PROCEDURE FOR THE CORRECTION OF 1,4-DIHYDRO-PYRIDINE DERIVATIVES |
SU894613641A SU1766254A3 (en) | 1988-03-08 | 1989-03-07 | Method for synthesis of 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-pyridine-3,5-dicarboxylic acid dimethyl ester |
BE8900247A BE1003199A5 (en) | 1988-03-08 | 1989-03-08 | PROCESS FOR THE PREPARATION OF 1,4-DIHYDROPYRIDINE DERIVATIVES AND TO NEW INTERMEDIATES USEFUL FOR THIS PREPARATION. |
PL1989278134A PL159098B1 (en) | 1988-03-08 | 1989-03-08 | Method of obtaining derivatives of 1,4-dihydropyridine |
JP1053968A JPH01316358A (en) | 1988-03-08 | 1989-03-08 | Production of 1,4-dihydropyridine derivative |
CS891454A CZ285313B6 (en) | 1988-03-08 | 1989-03-08 | Process for preparing dimethyl-1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)pyridine-3,5-dicarboxylate |
CA000593128A CA1340193C (en) | 1988-03-08 | 1989-03-08 | Process for preparing dihydropyridine derivatives |
DE3907508A DE3907508A1 (en) | 1988-03-08 | 1989-03-08 | PROCESS AND INTERMEDIATE PRODUCTS, IF N N SUBSTITUTED, (2- (NITRO) -PHENYL) METHYLENIMINE FOR THE PRODUCTION OF 1,4-DI- (HYDRO) -2,6-DI- (METHYL) -4- (2 '- ( NITRO) -PHENYL) -PYRIDINE-3,5-DI- (CARBONIC ACID DIMETHYL ESTER) AND METHOD FOR PRODUCING THIS INTERMEDIATE PRODUCTS |
DK113189A DK113189A (en) | 1988-03-08 | 1989-03-08 | PROCEDURE FOR THE PREPARATION OF PYRIDINE DERIVATIVES |
FI891111A FI92056C (en) | 1988-03-08 | 1989-03-08 | Process for the preparation of 1,4-dihydropyridine derivatives |
SE8900813A SE469659B (en) | 1988-03-08 | 1989-03-08 | PROCEDURES FOR THE PREPARATION OF 1,4-DIHYDROPYRIDINE DERIVATIVES |
KR1019890002844A KR0131338B1 (en) | 1988-03-08 | 1989-03-08 | 1,4, dihydro-pyridine intermediates |
GB8905270A GB2216521B (en) | 1988-03-08 | 1989-03-08 | Process for the preparation of 1,4-dihydro-pyridine derivatives |
NL8900569A NL8900569A (en) | 1988-03-08 | 1989-03-08 | PROCESS FOR THE PREPARATION OF 1,4-DIHYDRO-PYRIDINE DERIVATIVES. |
IT8919690A IT1229088B (en) | 1988-03-08 | 1989-03-08 | Prodn. of 1,4-di:hydro-pyridine deriv. |
FR8903043A FR2628421B1 (en) | 1988-03-08 | 1989-03-08 | PROCESS FOR THE PREPARATION OF 1,4-DIHYDROPYRIDINE DERIVATIVES AND NOVEL INTERMEDIATES USEFUL FOR THIS PREPARATION |
ES8900848A ES2012687A6 (en) | 1988-03-08 | 1989-03-08 | Process for the preparation of 1,4-dihydro-pyridine derivatives |
US07/321,293 US5126457A (en) | 1988-03-08 | 1989-03-08 | Process for the preparation of 1,4-dihydro-pyridine derivatives |
IL89536A IL89536A0 (en) | 1988-03-08 | 1989-03-08 | Preparation of 1,4-dihydropyridine derivatives |
AT0052589A AT395586B (en) | 1988-03-08 | 1989-03-08 | METHOD FOR PRODUCING A 1,4-DIHYDRO-PYRIDINE DERIVATE |
AU31129/89A AU615521B2 (en) | 1988-03-08 | 1989-03-08 | Compounds used in the preparation of nifedipine |
US07/686,443 US5216157A (en) | 1988-03-08 | 1991-04-17 | 1,4,Dihydro-pyridine intermediates |
GB9108770A GB2243608B (en) | 1988-03-08 | 1991-04-24 | Process for the preparation of 1,4-dihydro-pyridine derivatives |
AT0133791A AT399872B (en) | 1988-03-08 | 1991-07-04 | Prodn. of 1,4-di:hydro-pyridine deriv. - by reacting new 2-nitro-benzylidne-amine cpds. with methyl actoacetate, used for treating hypertension |
AT0133991A AT399873B (en) | 1988-03-08 | 1991-07-04 | Process for the preparation of a 1,4-dihydropyridine derivative |
AT0133891A AT400241B (en) | 1988-03-08 | 1991-07-04 | Process for the preparation of a 1,4-dihydropyridine derivative |
CY176094A CY1760A (en) | 1988-03-08 | 1994-07-15 | Process for the preparation of 1,4-dihydropyridine derivatives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU881112A HU200320B (en) | 1988-03-08 | 1988-03-08 | Process for production of derivatives of azometine |
Publications (2)
Publication Number | Publication Date |
---|---|
HUT49323A true HUT49323A (en) | 1989-09-28 |
HU200320B HU200320B (en) | 1990-05-28 |
Family
ID=10952897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU881112A HU200320B (en) | 1988-03-08 | 1988-03-08 | Process for production of derivatives of azometine |
Country Status (1)
Country | Link |
---|---|
HU (1) | HU200320B (en) |
-
1988
- 1988-03-08 HU HU881112A patent/HU200320B/en unknown
Also Published As
Publication number | Publication date |
---|---|
HU200320B (en) | 1990-05-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HU90 | Patent valid on 900628 | ||
HC9A | Change of name, address |
Owner name: EGIS GYOGYSZERGYAR NYRT., HU Free format text: FORMER OWNER(S): EGIS GYOGYSZERGYAR, HU |