SU146313A1 - Method for preparing 3- (4'-aminobenzenesulfonamido) -6-alkoxypyridazines from 3-amino-6-alkoxypyridazines and 4-acetylaminobenzenesulfonyl chloride - Google Patents

Method for preparing 3- (4'-aminobenzenesulfonamido) -6-alkoxypyridazines from 3-amino-6-alkoxypyridazines and 4-acetylaminobenzenesulfonyl chloride

Info

Publication number
SU146313A1
SU146313A1 SU641812A SU641812A SU146313A1 SU 146313 A1 SU146313 A1 SU 146313A1 SU 641812 A SU641812 A SU 641812A SU 641812 A SU641812 A SU 641812A SU 146313 A1 SU146313 A1 SU 146313A1
Authority
SU
USSR - Soviet Union
Prior art keywords
alkoxypyridazines
amino
aminobenzenesulfonamido
preparing
acetylaminobenzenesulfonyl chloride
Prior art date
Application number
SU641812A
Other languages
Russian (ru)
Inventor
Пеллманн Гюнтер
Рикхофф Курт
Бранд Эрих
Original Assignee
Пеллманн Гюнтер
Рикхофф Курт
Бранд Эрих
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 Пеллманн Гюнтер, Рикхофф Курт, Бранд Эрих filed Critical Пеллманн Гюнтер
Priority to SU641812A priority Critical patent/SU146313A1/en
Application granted granted Critical
Publication of SU146313A1 publication Critical patent/SU146313A1/en

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

|||11«.даад,щ| Известные способы получени  3-(4-а.минобензолсульфонамидо)-6алкоксипиридазинов предусматривают сплавлен е 3,б-ди.хлорпиридазина с 4-ацетиламинобензолхлоридом и поташем и обработку образовавшегос  продукта реакции метилатом натри  под давлением с получением 3-(4-амииобспзолсульфоиам1:до)-6-мстокспиридаз11иа. Кроме 1 этого, возможно коиденсировать З-амино-б-метоксипиридазин с 4-ацетилам 1 юбензолсульфон-хлоридом в пр1гсутствии шфидина с образованием 3-(4-аминобензолсульфонамидо)-6-метоксипиридазина. Этими способами, в особенности при конденсации в присутствии пиридина не получают чистого продукта, так что требуютс  многочисленные его перекристаллизации. Предлагаемый способ позвол ет устранить указанный недостаток и заключаетс  в следующем. 3-(4-аминобензолсульфона.мидо)-6-алкоксипиридазинполучают путем взаимоде; гстЕ;   1 мол  З-амино-6-алкоксипиридазина с 2 мол ми 4-ацетиламинобензолсульфонхлорида в присутствии смеси триметили триэтиламина св зывающей НС1. Сначала образуютс  (4-ацетиламинобензолсульфонил)-амино -6-алкоксипиридазины , которые легко изолируютс  и могут рмыл тьс  в соответствуюнше 3-(4-аминобензолсульфонамидо)-6-алкоксипиридазины ...||| 11 ". Dada, u | Known methods for the preparation of 3- (4-a.minobenzolsulfonamido) include fused -6alkoksipiridazinov e 3b-4-di.hlorpiridazina atsetilaminobenzolhloridom and potash, and processing the resulting pressurized reaction product with sodium methoxide to give 3- (4-amiiobspzolsulfoiam1: w) -6-mstokspiridaz11ia. In addition to 1 of this, it is possible to co-oxidize 3-amino-b-methoxypyridazine with 4-acetyl 1 jubensol sulfonyl chloride in the presence of chfidine to form 3- (4-aminobenzenesulfonamido) -6-methoxypyridazine. By these methods, especially by condensation in the presence of pyridine, no pure product is obtained, so that its numerous recrystallizations are required. The proposed method eliminates this drawback and is as follows. 3- (4-aminobenzenesulfone.amido) -6-alkoxypyridazin is obtained by the interaction; gctE; 1 mole of 3-amino-6-alkoxypyridazine with 2 moles of 4-acetylaminobenzenesulfonyl chloride in the presence of a mixture of trimethyl triethylamine binding HC1. First, (4-acetylaminobenzenesulfonyl) -amino-6-alkoxypyridazines are formed, which are easily isolated and can be washed in the corresponding 3- (4-aminobenzenesulfonamido) -6-alkoxypyridazines ...

SU641812A 1959-10-22 1959-10-22 Method for preparing 3- (4'-aminobenzenesulfonamido) -6-alkoxypyridazines from 3-amino-6-alkoxypyridazines and 4-acetylaminobenzenesulfonyl chloride SU146313A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU641812A SU146313A1 (en) 1959-10-22 1959-10-22 Method for preparing 3- (4'-aminobenzenesulfonamido) -6-alkoxypyridazines from 3-amino-6-alkoxypyridazines and 4-acetylaminobenzenesulfonyl chloride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU641812A SU146313A1 (en) 1959-10-22 1959-10-22 Method for preparing 3- (4'-aminobenzenesulfonamido) -6-alkoxypyridazines from 3-amino-6-alkoxypyridazines and 4-acetylaminobenzenesulfonyl chloride

Publications (1)

Publication Number Publication Date
SU146313A1 true SU146313A1 (en) 1961-11-30

Family

ID=48301787

Family Applications (1)

Application Number Title Priority Date Filing Date
SU641812A SU146313A1 (en) 1959-10-22 1959-10-22 Method for preparing 3- (4'-aminobenzenesulfonamido) -6-alkoxypyridazines from 3-amino-6-alkoxypyridazines and 4-acetylaminobenzenesulfonyl chloride

Country Status (1)

Country Link
SU (1) SU146313A1 (en)

Similar Documents

Publication Publication Date Title
SE426152B (en) SET TO MAKE A CROSS-BASED, STRINGED PRODUCT
NL7606622A (en) PROCESS FOR THE PREPARATION OF MILK PRODUCTS, AS WELL AS PRODUCTS OBTAINED ACCORDING TO THIS PROCESS.
FR2328675A1 (en) COMPOSITION TO ACCELERATE THE TAKING OF THE CALCINE GYPSUM, AND PRODUCT OBTAINED
SU146313A1 (en) Method for preparing 3- (4'-aminobenzenesulfonamido) -6-alkoxypyridazines from 3-amino-6-alkoxypyridazines and 4-acetylaminobenzenesulfonyl chloride
NL7414114A (en) ATOXIC, IMMUNOGENIC PRODUCT FROM TETANUS TOXIN.
RO69463A (en) PROCESS FOR THE PREPARATION OF ANTIBODIES 7 B- (D-2-AMINO-2- (ALCHYLSULFONYLAMINOPHENYL) -AACETYLAMINO) -3-ALCOXY-3-CEFEM-4-CARBOXYLIC ACID
MX144523A (en) PROCESS TO PRODUCE SULFOLANILOXIAIQUILHEPTAALQUILCICLOTETRASILOXANOS
AR211921A1 (en) PROCEDURE TO OBTAIN 3- (4-BROMOPHENIL) -N-METHYL-3 (3-PYRIDYL) -ALYLAMINE
ES382434A1 (en) 6,15 dialkoxy 5,14 diazo iso violanthrones
SU461963A1 (en) Magnesium based alloy
FR2108537A5 (en) 2-haloalkyl-5-phenyl-1,3,4-oxiadiazoles prepn - from haloalkanoic acids phenyl acid hydrazides and a mineral acid halide
NL7614324A (en) PROCESS FOR THE PREPARATION OF CARBONIC ACID CHLORIDES.
RO63789A (en) PROCESS FOR THE PREPARATION OF NOVEL N, N-DIMETHYL-N-O-PHENYL-THIONO) ALKANPHOSPHONYL-FORMAMIDINE ESTERS
ES411834A3 (en) A method of preparation of titranolide of titanium. (Machine-translation by Google Translate, not legally binding)
JPS51149227A (en) Process for preparing alkyl n- haloacethylcarbamates
NL7510575A (en) ANTIGEN PREPARATION OF BACTERIAL ORIGIN TO ADMINISTRATELY.
GB807418A (en) Betaine ascorbate and its production
FR1229637A (en) Lysine synthesis process
JPS51136661A (en) Process for preparing 7-dehydrocholesterols.
JPS51138608A (en) Process for preparation of hexyne-3-ol
ES193734U (en) Flat clasp for children's clothes. (Machine-translation by Google Translate, not legally binding)
ES24719U (en) Buckle without clavillo (Machine-translation by Google Translate, not legally binding)
JPS51149226A (en) Process for preparing alkyl n- haloacetylcarbamates
CH372292A (en) Process for the preparation of 6,8-dithiol-octanoic acid
BE498257A (en) IMPROVEMENTS IN THE PROCESS FOR THE PRODUCTION OF AN 8-HALOXANTHINE SALT FROM AN ORGANIC BASE AND 8-HALOXANTHINE SALT RESULTING FROM IT.