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Priority to BG9479391ApriorityCriticalpatent/BG51402A1/en
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The derivatives have a high herbicide effect with a pronounced selectivity. They have the following general formula:<IMAGE>where R represents hydrogen or methyl group and R1 - chlorine or allyloxy group. According to the method, the derivatives of 2,2,6,6-tetramethylpiperidine are prepared through reaction with 2,2,6,6-tetramethylpiperidine-4, with a general formula<IMAGE>where R has the indicated meanings, with equimolar quantity of cyanurchloride or cyanurchloride and allyl alcohol in a mixture of 50 per cent water solution of sodium hydroxide and organic solvent (e.g. benzene, methylenechloride or toluene), which does not mix with water, at a temperature of 10 to 50 degrees C and in the presence of catalytic quantities of quaternary ammonium salts.
BG9479391A1991-07-111991-07-111,3,5-triazene derivatives of 2,2,6,6-tetramethylpiperidine and process for the preparation thereof
BG51402A1
(en)
2-(2-alkoxyethyl)-2'-hydroxy-6.7-benzomorphane derivatives, their acid addition salts, medicaments containing them and process for their preparation
Quaternary ammonium derivatives, methods for the preparation thereof and waterproofing and waterproofing and preservative compositions containing the same
INDOLO(3,2,1-DE>(1,4>-OXAZINO(2,3,4IJ>(1,5>NAPHTHYRIDE DERIVATIVES, PROCESSES FOR THEIR MANUFACTURE AND INTERMEDIATE PRODUCTS, THEIR USE AS MEDICINAL PRODUCTS AND PREPARATIONS CONTAINING THEM.