NO116821B - - Google Patents

Download PDF

Info

Publication number
NO116821B
NO116821B NO159929A NO15992965A NO116821B NO 116821 B NO116821 B NO 116821B NO 159929 A NO159929 A NO 159929A NO 15992965 A NO15992965 A NO 15992965A NO 116821 B NO116821 B NO 116821B
Authority
NO
Norway
Prior art keywords
pyridazine
oxy
pyridazines
parts
cyano
Prior art date
Application number
NO159929A
Other languages
English (en)
Inventor
J Westberg
Original Assignee
Aga Ab
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 SE10467/65A external-priority patent/SE340533B/xx
Application filed by Aga Ab filed Critical Aga Ab
Publication of NO116821B publication Critical patent/NO116821B/no

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/104Preparation of respiratory gases or vapours specially adapted for anaesthetics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/12Preparation of respiratory gases or vapours by mixing different gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80Forming a predetermined ratio of the substances to be mixed
    • B01F35/83Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • B01F35/833Flow control by valves, e.g. opening intermittently
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/22Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/28Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06Indicating or recording devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F5/00Measuring a proportion of the volume flow
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00Control of flow ratio
    • G05D11/003Control of flow ratio using interconnected flow control elements

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Pulmonology (AREA)
  • Veterinary Medicine (AREA)
  • Anesthesiology (AREA)
  • Emergency Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Automation & Control Theory (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measuring Volume Flow (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

Fremgangsmåte til fremstilling av halogenpyridaziner.
Gjenstanden for foreliggende oppfin-nelse er fremstilling av 6-halogen-, særlig 6-klor-pyridaziner, som i 5-stilling har en fri eller funksjonelt avledet karboksylgruppe eller en acylrest. En funksjonelt avledet karboksylgruppe er f. eks. en forestret eller amidert karboksylgruppe og i første rekke cyangruppen. Med acylrest skal først fortrinsvis forstås acetylgruppen. Oppfinnelsen angår særlig slike 6-halogen-pyridaziner som i 3- og 4-stilling har lavere al-kyl, slik som metylrester, f. eks. 6-klor-5-cyan-3,4-dimetyl-pyridazin med formelen
De kan imidlertid også i disse stillinger ha andre rester slik som fenylrester.
De nevnte forbindelser har fungisid
virkning, f. eks. mot Epidermophyton og Microsporum, og amøbisid virkning, f. eks. mot Entamoeba Histolytica, og kan anven-des som legemiddel. De er også verdifulle som mellomprodukter.
Disse halogenpyridaziner lar seg fremstille etter i og for seg kjente fremgangsmåter. Således kan man behandle 6-oksy-pyridaziner, som i 5-stilling har en fri eller funksjonelt avledet karboksylgruppe eller en acylrest, med halogeneringsmidler. Som slike midler egner seg fortrinsvis halogen-idene av fosforsyre, slik som fosforoksyklorid, fosforpentaklorid eller fosforpenta-bromid. Omsetningen kan utføres i nær-vær eller fravær av fortynningsmidler eller
katalysatorer i åpent eller lukket kar under
trykk. Man arbeider fortrinsvis ved for-høyet temperatur.
De som utgangstoffer anvendte 6-oksy-pyridaziner er kjent eller lar seg fremstille etter i og for seg kjente fremgangsmåter.
Oppfinnelsen beskrives i de følgende eksempler. Mellom vektsdel og volumdel består det samme forhold som mellom gram og cm<3>. Temperaturene er angitt i Celsius-grader.
Eksempel 1:
20 vektsdeler 6-oksy-5-cyan-3,4-dime-tyl-pyridazin opphetes i en time i et bad på 100° sammen med 90 volumdeler fosforoksyklorid. Man avdamper overskudd av fosforoksyklorid i vakuum og tilsetter resten isvann. Den vandige oppløsning stilles
på pH = 7 med 2-n. natronlut, uttrekkes med kloroform, og kloroformresten omkry-stalliseres av ligroin. 6-klor-5-cyan-3,4-di-metyl-pyridazin fåes således i hvite krystaller med smeltepunkt = 81—82°. Utbytte 90 pst.
Eksempel 2:
Man oppheter 5 vektsdeler 6-oksy-5-lumdeler fosforoksyklorid i y2 time til 100°.
karbetoksy-3,4-difenyl-pyridazin og 30 vo-Deretter avdampes i vakuum for overskudd
åv fosforoksyklorid, resten opptas i isvann,
og den vandige oppløsning uttrekkes med eter. Eterresten krystalliserer man fra etylalkohol og får således 6-klor-5-karbet-oksy-3,4-difenyl-pyridazin med formelen
i hvite krystaller med smeltepunkt = 114°.
Utbytte 85 pst.
Eksempel 3:
20 vektsdeler 6-oksy-5-cyan-3,4-difenyl-pyridazin opphetes med 120 volumdeler fosforoksyklorid i y2 time til 100°. Man av-
damper deretter overskudd av fosforoksy-
klorid i vakuum og tilsetter resten isvann.
Den vandige oppløsning utrystes med eter,
eteren fordampes, og eterresten omkrystal-
liseres fra etylalkohol. Man får således 6-klor-5-cyan-3,4-difenyl-pyridazin med formelen
som hvite krystaller med smeltepunkt =
134—135°. Utbytte 75 pst.
Eksempel 4:
17,2 vektsdeler 6-oksy-5-karbetoksy-3,4-d;-(p-klorfenyl)-pyridazin og 100 volumdeler fosforoksyklorid opphetes y2 time til 100°. Man avdamper deretter overskudd av fosforoksyklorid i vakuum, tilsetter resten isvann og uttrekker med eter. Ved omkry-stallisasjon av eterresten fra etylalkohol får man 6-klor-5-karbetoksy-3,4-di-(p-klor-fenyl)-pyridazin med formelen
som hvite krystaller med smeltepunkt =- 137—139°. Utbytte 45 pst.
Eksempel 5:
Man oppheter 5 vektsdeler 6-oksy-5-acetyl-3,4-difenyl-pyridazin og 30 volumdeler fosforoksyklorid y2 time til 100°. Fosforoksyklorid avdampes deretter i vakuum, resten tilsettes isvann og uttrekkes med kloroform. Etter avdestillasjon av kloro-formen krystalliserer 6-klor-5-acetyl-3,4 difenyl-pyridazin med formelen
fra etylalkohol som hvite krystaller med smeltepunkt = 166—167°. Utbytte 82 pst.

Claims (2)

1. Fremgangsmåte til fremstilling av 6-halogen-pyridaziner, som i 5-stilling har en fri eller funksjonelt avledet karboksyl-
eller acylgruppe, karakterisert ved at man behandler 6-oksy-pyridaziner, som i 5-stil-
ling inneholder en fri eller funksjonelt avledet karboksylgruppe eller en acylrest, med halogeneringsmidler, særlig kloreringsmid-ler.
2. Framgangsmåte ifølge påstand 1, karakterisert ved at man som utgangsstof-
fer anvender 5-cyan-6-oksypyridaziner, særlig slike som i 3- og 4-stilling har en lavere alkylrest.
NO159929A 1964-12-10 1965-10-01 NO116821B (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1493064 1964-12-10
SE10467/65A SE340533B (no) 1965-08-11 1965-08-11

Publications (1)

Publication Number Publication Date
NO116821B true NO116821B (no) 1969-05-27

Family

ID=26655772

Family Applications (1)

Application Number Title Priority Date Filing Date
NO159929A NO116821B (no) 1964-12-10 1965-10-01

Country Status (9)

Country Link
AT (1) AT257974B (no)
CH (1) CH432865A (no)
DE (1) DE1498275A1 (no)
DK (1) DK115505B (no)
FI (1) FI40947B (no)
FR (1) FR1459558A (no)
GB (1) GB1067799A (no)
NL (1) NL6514850A (no)
NO (1) NO116821B (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105403269B (zh) * 2015-12-03 2018-10-30 中国科学院测量与地球物理研究所 可调式地表径流监测装置

Also Published As

Publication number Publication date
AT257974B (de) 1967-11-10
FR1459558A (fr) 1966-11-18
GB1067799A (en) 1967-05-03
NL6514850A (no) 1966-06-13
FI40947B (no) 1969-03-31
DK115505B (da) 1969-10-13
DE1498275A1 (de) 1968-12-12
DE1498275B2 (no) 1970-12-17
CH432865A (de) 1967-03-31

Similar Documents

Publication Publication Date Title
Jensen The synthesis of 1-phenyl-3-methyl-4-acyl-pyrazolones-5
NO153520B (no) Fremgangsmaate til fremstilling av et stabilt prepaat inneholdende prostaglandin.
SU623518A3 (ru) Способ получени производных оксазола
SU433681A3 (ru) Способ получения 1,2.4^триазин-5-онов
US3168532A (en) 1, 5-diarylpyrrole-2-propionic acid compounds
McKillip et al. Aminimides. I. A general synthesis of aminimides from acyl hydrazides and their pyrolysis
NO116821B (no)
US3007927A (en) Triazine derivatives
SU664568A3 (ru) Способ получени ацилпроизводных эритромициноксима
US3128286A (en) Process for preparing analogues
JPS5821916B2 (ja) トリアゾロベンゾチアゾ−ルルイノセイホウ
US2839529A (en) Isothiazole compounds
US2547714A (en) Furane amino keto compounds
US2953598A (en) Acyl hydrazines
NO116631B (no)
US3417153A (en) Polynitrobenzofluorides and the method of preparation thereof
US3115518A (en) Production of cyclohexylideneaminooxyacetic acid, its esters, and its salts
US2467126A (en) Production of mono-alkyl esters of the addition product of levo-pi-maric acid with maleic anhydride
NO115262B (no)
SU384331A1 (ru) Способ получени 1-замещенных карбамоил-4(2-оксиарил)-семинарбазидов
SU133871A1 (ru) Способ получени альфа-алкил- и альфа-арил-бета-алкоксиакролеинов
JPS5944312B2 (ja) インダゾ−ル誘導体の製法
Cook et al. 495. Studies in the azole series. Part XXI. Experiments with N-alkylamino-nitriles
US2434060A (en) Tetraacetylribonamide and process of making it
US3770738A (en) Hydrazides