http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1008266-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D265-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-59 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D263-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D405-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-65335 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-59 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D265-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D405-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6533 |
| filingDate | 1963-02-07^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1965-10-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1008266-A |
| titleOfInvention | 3-substituted benzoxazine-(1,4)-one-(2) derivatives |
| abstract | The invention comprises compounds of the general formula <FORM:1008266/C2/1> wherein R is a chlorine atom or a C1-C4 alkyl radical, n represents O or an integer of 1 to 4 and X represents an ammonium, cyclimmonium or phosphonium radical or a -SH, -O-CO-R1, -S-CO-R1, -O-CS-R1, -S-CS-R1, -S-CS-OR1, -NR211, -O-CO-NR211, -O-CS-NR211 or -S-CS-NR211, wherein R1 is an alkyl, aryl, aralkyl or cycloalkyl radical and R11 is a hydrogen atom or an alkyl, aryl, aralkyl or cycloalkyl radical or an aryl radical containing 1-3 chlorine atoms or NR211 represents a heterocyclic radical. These 3-substituted benzoxazine-(1,4)-one-(2) derivative may be produced by reacting a 3-chloro-benzoxazine - (1,4) - one - (2) of the formula <FORM:1008266/C2/2> with ammonia, an amine, phosphine, hydrogen sulphide, or an alkali metal, alkaline earth metal or ammonium salt of a carboxylic, thiocarboxylic, xanthogenic, carbamic or thiocarbamic acid. The reaction is expediently performed in an inert organic solvent or diluent at - 30 DEG to + 200 DEG C., preferably - 20 DEG to + 60 DEG C., and, when employing ammonia or an amine as reactant, an excess thereof may be used as an acid-binding agent. Benzoxazole-2-carboxylic acid amides, formed as by-products in the above reaction when ammonia or a strongly basic primary or secondary amine is employed, may be separated from the compounds of the invention by, for example, fractional crystallisation or preparative chromatography. Some of said amides are described and claimed in Specification 1,008,267.ALSO:Herbicidal compositions contain one or more compounds of the general formula <FORM:1008266/A5-A6/1> wherein R is a chloric atom or a C1-C4 alkyl radical, n is 0 or an integer of 1 to 4 and X represents an ammonium, cyclimmonium or phosphonium radical or a -SH, -O-CO-R1, -S-CO-R1, -O-CS-R1, -S-CS-R1, -S-CS-OR1, -NR112, -OCONR112, -O-CS-NR112 or -S-CS-NR112 radical wherein R1 is an alkyl, aryl, aralkyl or cycloalkyl radical and R11 is a hydrogen atom or an alkyl, aryl, aralkyl, or cycloalkyl radical or an aryl radical containing 1 to 3 chlorine atoms or R112 may represent a heterocyclic radical, and a solid or liquid diluent or carrier. The compositions may also contain, as active ingredients, known herbicides or benzoxazole-2-carboxylic acid amides of the formula <FORM:1008266/A5-A6/2> which amides may be formed as by-products in the preparation of the 3-substituted benzoxazine-(1,4)-one-(2) derivatives. Emulsifying and dispersing agents may also be present and the compositions may be applied as emulsifiable concentrates, spray powders, pastes, soluble powders, dusts and granulates. Said formulations contain the benzoxazine-(1, 4)-ones in amounts between 0.1 and 95% by weight. Specification 1,008,267 is referred to. |
| priorityDate | 1962-02-07^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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