CH301595A - Process for producing a hydrazine compound. - Google Patents
Process for producing a hydrazine compound.Info
- Publication number
- CH301595A CH301595A CH301595DA CH301595A CH 301595 A CH301595 A CH 301595A CH 301595D A CH301595D A CH 301595DA CH 301595 A CH301595 A CH 301595A
- Authority
- CH
- Switzerland
- Prior art keywords
- producing
- hydrazine compound
- hydrazine
- hydrazino
- volume
- Prior art date
Links
- OAKJQQAXSVQMHS-UHFFFAOYSA-N hydrazine Substances NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 5
- -1 hydrazine compound Chemical class 0.000 title description 2
- RPTUSVTUFVMDQK-UHFFFAOYSA-N Hidralazin Chemical class C1=CC=C2C(NN)=NN=CC2=C1 RPTUSVTUFVMDQK-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- RGYHGSBVFWRLCJ-UHFFFAOYSA-N 2h-phthalazine-1-thione Chemical compound C1=CC=C2C(S)=NN=CC2=C1 RGYHGSBVFWRLCJ-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D237/00—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings
- C07D237/26—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings condensed with carbocyclic rings or ring systems
- C07D237/30—Phthalazines
- C07D237/34—Phthalazines with nitrogen atoms directly attached to carbon atoms of the nitrogen-containing ring, e.g. hydrazine radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung <B>einer</B> Hydrazinverbindung. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung des in der Schweiz. Patentschrift Nr. 262114 beschriebe nen 1-Hydrazino-phthalazins, welches da durch gekennzeichnet ist, dass man 1-1Vler- eapto-phtha.Iazin mit Hydrazin umsetzt.
Die Umsetzung wird zweck .mässig in An wesenheit von Verdünnungsmitteln, allenfalls auch in Gegenwart von Kondensationsmitteln, vorteilhaft bei erhöhter Temperatur, durch geführt.
<I>Beispiel 1:</I> 1 C@ewiehtsteil 1-Mercapto-phthalazin wird in 5 Volumteilen Äthylalkohol und 5 Volum- teilen Hydrazinhydrat 3 Stunden auf dem Wasserbad zum -Sieden erhitzt. Es entweicht dabei Schwefelwasserstoff.
Beim Erkalten der klaren Reaktionslösung kristallisiert direkt. 1- Hydrazino-phthalazin in reiner Form mit einer Ausbeute von über 80 % aus. F. etwa 172 . Mit verdünnter Salzsäure erhält man das Hydro chlorid sofort analysenrein; F. = 265 unter Zersetzung.
Process for the preparation of a hydrazine compound. The subject of the present patent is a process for the production of the in Switzerland. Patent specification No. 262114 describes NEN 1-hydrazino-phthalazins, which is characterized by the fact that 1-1Vler- eapto-phtha.Iazine is reacted with hydrazine.
The reaction is expediently carried out in the presence of diluents, possibly also in the presence of condensing agents, advantageously at elevated temperature.
<I> Example 1: </I> 1% of 1-mercaptophthalazine is heated to boiling in 5 parts by volume of ethyl alcohol and 5 parts by volume of hydrazine hydrate for 3 hours on a water bath. In the process, hydrogen sulfide escapes.
When the clear reaction solution cools, it crystallizes directly. 1- hydrazino-phthalazine in pure form with a yield of over 80%. F. about 172. With dilute hydrochloric acid, the hydrochloride is immediately obtained in analytically pure form; F. = 265 with decomposition.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH301595T | 1952-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH301595A true CH301595A (en) | 1954-09-15 |
Family
ID=4491099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH301595D CH301595A (en) | 1952-01-18 | 1952-01-18 | Process for producing a hydrazine compound. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH301595A (en) |
-
1952
- 1952-01-18 CH CH301595D patent/CH301595A/en unknown
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