FIELD: organic chemistry. SUBSTANCE: product - lower dialkyl ester of 2-difluoromethyl -4-(2-methylpropyl) -6-trifluoromethyl -3,5-pyridine dicarboxylic acid. Reagent 1: 1,4-dihydro -2,6-bis- (trifluoromethyl) -4-(2-methylpropyl) -3,5-- pyridine dicarboxylic acid. Reaction conditions: dehydrofluorination, base - 1,4-diazobicyclo-(2,2,2)-octane, molar ratio base:ester is (0.5-1.0):1. Synthesized compounds were used in agriculture as herbicides. EFFECT: improved method of synthesis. 4 cl, 1 tbl
| Title |
Year |
Author |
Number |
| METHOD OF SYNTHESIS OF LOWER ALKYL OXY- OR THIO-DERIVATIVES 4-(LOWER ALKYL)-2,6-BIS-(TRIFLUOROMETHYL)-(DIHYDRO- OR TETRAHYDRO)-PYRIDINE-3,5-DICARBOXYLIC ACIDS |
1991 |
- Sherrol Li Bejsdon[Us]
- Mitchell Dzhoehl Pulver[Us]
- Khelen Li Janoski[Us]
|
RU2036908C1 |
| METHOD OF CONTROLLING UNDESIRABLE VEGETATION |
0 |
- Len Fang Li
- Mariya Ludovina Miller
- Yuen-Lung Lourens Sing
|
SU1814516A3 |
| METHOD OF OBTAINING DERIVATIVES OF 1,4 OR 3,4-DIHYDROPYRIDINE OR MIXTURE THEREOF |
0 |
|
SU1531853A3 |
| METHOD OF SYNTHESIS OF S,S-DI(LOWER ALKYL)-ESTER OF 4-(LOWER ALKYL)-2,6-BIS- (TRIFLUOROMETHYL)-2,6-DIHYDROXY-3,5-PIPERIDINE DICARBOTHIOACID |
1991 |
- Sherol Li Bejsdon[Us]
- Mitchel Dzhoehl Palver[Us]
- Khelen Li Janoski[Us]
|
RU2014325C1 |
| HERBICIDE COMPOSITION |
0 |
|
SU1577682A3 |
| METHOD OF SYNTHESIS OF DIMETHYL-2-DIFLUOROMETHYL-4-(2-METHYLPROPYL)- 6-TRIFLUOROMETHYL-3,5-PYRIDINEDICARBOTHIOATE |
1991 |
- Khelen Li Dzhanoski[Us]
- Mitchell Dzhoehl Palver[Us]
|
RU2014322C1 |
| OXAZOLIDINE DIHALOACETAMIDE COMPOUNDS AND A METHOD OF HERBICIDE PHYTOTOXIC EFFECT DECREASE |
1988 |
- Ronald Dzhosef Brinker[Us]
- Brett Khejdn Bassler[Us]
- Stiven Mark Mehssi[Us]
- Ehrik Li Uilliams[Us]
|
RU2093029C1 |
| METHOD TO FIGHT AGAINST UNDESIRABLE VEGETATION |
0 |
- Len Fang Li
- Yuen-Lung Lourens Sing
|
SU1836015A3 |
| 5,6-DISUBSTITUTED 3-PYRIDYLMETHYLAMMONIUM HALOGENIDES, METHOD OF THEIR SYNTHESIS AND METHODS OF SYNTHESIS 5-(SUBSTITUTED METHYL)-2,3-PYRIDINE CARBOXYLIC ACIDS |
1993 |
|
RU2090558C1 |
| DERIVATIVES OF 3-TRIFLUOROMETHYL-1-CARBA-1-DETHIA-3-CEPHEM-4-CARBOXYLIC ACID AND AN INTERMEDIATE COMPOUND FOR THEIR SYNTHESIS |
1992 |
- Gvendolin Kehj Kuk[Us]
- Villiam Dzhozef Khornbehk[Us]
- Zhdon Khehmpton Makdonal'D Iii[Us]
- Dzhon Ehdvin Manrou[Us]
|
RU2089551C1 |
