MD116C2 - Method of obtaining of alkylanikine fumarate - Google Patents
Method of obtaining of alkylanikine fumarateInfo
- Publication number
- MD116C2 MD116C2 MD94-0094A MD940094A MD116C2 MD 116 C2 MD116 C2 MD 116C2 MD 940094 A MD940094 A MD 940094A MD 116 C2 MD116 C2 MD 116C2
- Authority
- MD
- Moldova
- Prior art keywords
- obtaining
- fumarate
- aniline
- alkyl
- hours
- Prior art date
Links
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to the replacings of aniline, especially to the obtaining of C1-C4-alkylanilin fumarate-semiproduct for the synthesis of heterocyclic herbicides. Its purpose is to simplify the process. It is done through the reaction C1-C4 of alkyl dichlorsuccinate, at the beginning with a treble surplus of amine with formula R1R2NH wherein R1 and R2 represent H, C1-C4-alkyl, from which only one of R1 and R2 representing H or NR1-R2 being heterocycle with 5 or 6 member with 1,2 heteroatoms, at ebullition during 8 hours, than with aniline in organic inert dissolvent, which contains organic acide, at 80-85°C during 4 hours. In this case is possible the using of reactives easy of access and the obtaining of efficiency of destination product (until 69%).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/902,274 US4675432A (en) | 1986-08-29 | 1986-08-29 | Method for the preparation of anilinofumarate |
SU4203226A SU1736334A3 (en) | 1986-08-29 | 1987-08-28 | Method of alkylanilinofumarate synthesis |
Publications (2)
Publication Number | Publication Date |
---|---|
MD116B1 MD116B1 (en) | 1994-12-31 |
MD116C2 true MD116C2 (en) | 1995-06-30 |
Family
ID=26666105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MD94-0094A MD116C2 (en) | 1986-08-29 | 1994-04-27 | Method of obtaining of alkylanikine fumarate |
Country Status (3)
Country | Link |
---|---|
LT (1) | LT2505B (en) |
LV (1) | LV5699A3 (en) |
MD (1) | MD116C2 (en) |
-
1993
- 1993-09-16 LT LTRP984A patent/LT2505B/en not_active IP Right Cessation
- 1993-10-08 LV LV931142A patent/LV5699A3/en unknown
-
1994
- 1994-04-27 MD MD94-0094A patent/MD116C2/en active IP Right Grant
Non-Patent Citations (4)
Title |
---|
Brevet US, nr. 3656283, Int. cl.5 C 07 D 215/54, 1984. * |
Brevet US, nr. 4459409, Int. cl.5 C 07 D 215/54, 1984. * |
Brevet US, nr. 4766218, Int. cl.5 C 07 D 215/54, 1988, PRIVIND 29.08.86. * |
Heterocyclic Compounds, 1952, v. 4, p. 209-227. * |
Also Published As
Publication number | Publication date |
---|---|
LV5699A3 (en) | 1995-02-20 |
MD116B1 (en) | 1994-12-31 |
LT2505B (en) | 1994-02-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG4A | Patent for invention issued | ||
IF99 | Valid patent on 19990615 |
Free format text: EXPIRES: 20070827 |