RO81266B1 - Process for preparing some derivatives of momo and -disubstituted malonic ester - Google Patents
Process for preparing some derivatives of momo and -disubstituted malonic esterInfo
- Publication number
- RO81266B1 RO81266B1 RO102848A RO10284880A RO81266B1 RO 81266 B1 RO81266 B1 RO 81266B1 RO 102848 A RO102848 A RO 102848A RO 10284880 A RO10284880 A RO 10284880A RO 81266 B1 RO81266 B1 RO 81266B1
- Authority
- RO
- Romania
- Prior art keywords
- momo
- derivatives
- preparing
- malonic ester
- disubstituted malonic
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Inventia se refera la un procedeu pentru prepararea 2,6-diclor-4-nitroanilinei prin clorurarea cu clor gazos ap-nitroanilinei, în solutie apoasa de acid clorhidric, la fierbere si anume reactia se realizeaza la o concentratia a acidului clorhidric de 4....7,5 N, de preferinta 4,5....6 N si la o temperatura cuprinsa între 95 si 110 degree C, de preferinta 105...110 degree C, eventual cu o suprapresiune pîna la 3 bari.The invention relates to a process for the preparation of 2,6-dichloro-4-nitroaniline by chlorination with chlorine gas of ap-nitroaniline in an aqueous solution of hydrochloric acid at boiling, i.e., the reaction is carried out at a concentration of 4% hydrochloric acid. Preferably 7,5 N, preferably 4,5 ... 6 N, and at a temperature comprised between 95 and 110 C, preferably 105 ... 110 C, possibly with an overpressure of up to 3 bar.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO102848A RO81266B1 (en) | 1980-12-16 | 1980-12-16 | Process for preparing some derivatives of momo and -disubstituted malonic ester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO102848A RO81266B1 (en) | 1980-12-16 | 1980-12-16 | Process for preparing some derivatives of momo and -disubstituted malonic ester |
Publications (2)
Publication Number | Publication Date |
---|---|
RO81266A2 RO81266A2 (en) | 1983-02-15 |
RO81266B1 true RO81266B1 (en) | 1983-02-28 |
Family
ID=20109263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO102848A RO81266B1 (en) | 1980-12-16 | 1980-12-16 | Process for preparing some derivatives of momo and -disubstituted malonic ester |
Country Status (1)
Country | Link |
---|---|
RO (1) | RO81266B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105646214A (en) * | 2016-02-24 | 2016-06-08 | 潍坊晶润化工有限公司 | Preparation method of diethyl ethylisopentylmalonate |
-
1980
- 1980-12-16 RO RO102848A patent/RO81266B1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105646214A (en) * | 2016-02-24 | 2016-06-08 | 潍坊晶润化工有限公司 | Preparation method of diethyl ethylisopentylmalonate |
Also Published As
Publication number | Publication date |
---|---|
RO81266A2 (en) | 1983-02-15 |
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