CA1151659A - Preparation de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone et de produits intermediaires - Google Patents

Preparation de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone et de produits intermediaires

Info

Publication number
CA1151659A
CA1151659A CA000413866A CA413866A CA1151659A CA 1151659 A CA1151659 A CA 1151659A CA 000413866 A CA000413866 A CA 000413866A CA 413866 A CA413866 A CA 413866A CA 1151659 A CA1151659 A CA 1151659A
Authority
CA
Canada
Prior art keywords
dimethyl
phthalazone
mixture
reaction
formula
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.)
Expired
Application number
CA000413866A
Other languages
English (en)
Inventor
Yukio Takei
Masao Yoshida
Rinzo Nishizawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Kayaku Co Ltd
Original Assignee
Nippon Kayaku Co Ltd
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
Priority claimed from JP9676479A external-priority patent/JPS5636465A/ja
Priority claimed from JP9676379A external-priority patent/JPS5636464A/ja
Priority claimed from JP16087379A external-priority patent/JPS5683478A/ja
Priority claimed from CA000356356A external-priority patent/CA1143733A/fr
Application filed by Nippon Kayaku Co Ltd filed Critical Nippon Kayaku Co Ltd
Priority to CA000413866A priority Critical patent/CA1151659A/fr
Application granted granted Critical
Publication of CA1151659A publication Critical patent/CA1151659A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Plural Heterocyclic Compounds (AREA)
CA000413866A 1979-07-31 1982-10-20 Preparation de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone et de produits intermediaires Expired CA1151659A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000413866A CA1151659A (fr) 1979-07-31 1982-10-20 Preparation de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone et de produits intermediaires

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP9676479A JPS5636465A (en) 1979-07-31 1979-07-31 Phthalazone-4-hydroxyacetic acid derivative, its preparation and production of 4-hydroxymethylphthalazone derivative
JP96763/'79 1979-07-31
JP9676379A JPS5636464A (en) 1979-07-31 1979-07-31 Phthalazone-4-halogenoacetic acid derivative, its preparation and production of 4-hydroxymethylphthalazone derivative
JP96764/'79 1979-07-31
JP160873/'79 1979-12-13
JP16087379A JPS5683478A (en) 1979-12-13 1979-12-13 4-halogenomethyl-1-phthalazone derivative, its preparation and preparation of 4-hydroxymethylphthalazone derivative
CA000356356A CA1143733A (fr) 1979-07-31 1980-07-16 Obtention de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone, et de produits intermediaires
CA000413866A CA1151659A (fr) 1979-07-31 1982-10-20 Preparation de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone et de produits intermediaires

Publications (1)

Publication Number Publication Date
CA1151659A true CA1151659A (fr) 1983-08-09

Family

ID=27508176

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000413866A Expired CA1151659A (fr) 1979-07-31 1982-10-20 Preparation de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone et de produits intermediaires

Country Status (1)

Country Link
CA (1) CA1151659A (fr)

Similar Documents

Publication Publication Date Title
EP0916675B1 (fr) Procédé pour la préparation de sildenafil
CA1168244A (fr) Methode pour aroyler en 5 les esters d'acide 1,2-dihydro-3h-pyrrolo[1,2-a]pyrrole-1- carboxylique
US4289879A (en) Synthetic method and intermediate for piroxicam
CA1143733A (fr) Obtention de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone, et de produits intermediaires
CH634322A5 (de) 1-azaxanthon-3-carbonsaeuren und verfahren zu ihrer herstellung.
CA1151659A (fr) Preparation de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone et de produits intermediaires
US4464532A (en) Intermediates of 7-alkoxycarbonyl-6,8-dimethyl-4-hydroxymethyl-1-phthalazone
US4894457A (en) 7-bromo-beta-carboline compound and method for producing same
US4150031A (en) Hydroxy methyl carbazole acetic acid and esters
CA1125765A (fr) Derives du carbazol
CA1151648A (fr) Preparation de 7-alcoxycarbonyl-6,8-dimethyl-4- hydroxymethyl-1-phtalazone et de produits intermediaires
US5453512A (en) Method of producing 2-amino-3-nitro-5-halogenopyridine
US5578728A (en) Process for the preparation of a benzo(a)quinolizione derivative
US5003068A (en) Pyridazinone manufacture
EP0090769B1 (fr) Procédé pour la préparation de la 1,2,5,6-tétrahydro-4H-pyrrolo(3,2,1-ij)-quinoléin-4-one et 5-halo-1,2,3-(1,2-dihydropyrrolo)-4-quinolones intermédiaires
US4595755A (en) 5-halo-1,2,3-(1,2-dihydropyrrolo)-4-quinolones
US4677228A (en) Chemical process
US5371224A (en) Process for preparing 2,5-dibromopyrimidine
EP0842919A1 (fr) Procede de preparation de 3,4-dihydroxy-3-cyclobutene-1,2-dione
CA1133493A (fr) Oxydation par l'air d'oxindoles en isatines
US4024136A (en) Process for the preparation of 4-hydroxy-3-(5-methyl-3-isoxazolylcarbamoyl)-2-methyl-2H-1,2-benzothiazine 1,1-dioxide
US4178289A (en) Carbazole acetic acid derivatives
US5223622A (en) Quinazolin-2-ones
CA1262546A (fr) Produits intermediares a base de quinolone pour la preparation de 1,2,5,6-tetrahydro-4h-pyrrolo ¬3,2,1,ij|-quinoleine-4-one
Srinivas et al. A novel baker's yeast mediated CC bond cleavage reaction

Legal Events

Date Code Title Description
MKEX Expiry