54 |
Titel |
TI |
[DE] Verfahren zur Herstellung von Salzen der N-Phosphonomethylglyzin. [EN] Method for preparation of salts of N-phosphonomethylglycine. [FR] Méthode de préparation de sels de N-phosphonométhylglycine. |
71/73 |
Anmelder/Inhaber |
PA |
STAUFFER CHEMICAL CO, US
|
72 |
Erfinder |
IN |
BROADHURST MICHAEL DAVID
;
BYRANHEATHER JAMES
|
22/96 |
Anmeldedatum |
AD |
19.10.1983 |
21 |
Anmeldenummer |
AN |
83306353 |
|
Anmeldeland |
AC |
EP |
|
Veröffentlichungsdatum |
PUB |
05.09.1984 |
33 31 32 |
Priorität |
PRC PRN PRD |
US
45781283
19830113
|
51 |
IPC-Hauptklasse |
ICM |
C07F 9/38
|
51 |
IPC-Nebenklasse |
ICS |
|
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IPC-Zusatzklasse |
ICA |
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IPC-Indexklasse |
ICI |
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Gemeinsame Patentklassifikation |
CPC |
C07F 9/38
C07F 9/3813
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MCD-Hauptklasse |
MCM |
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MCD-Nebenklasse |
MCS |
C07F 9/38
(2006.01)
C07F 9/40
(2006.01)
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MCD-Zusatzklasse |
MCA |
|
57 |
Zusammenfassung |
AB |
[EN] A process for the preparation of sulfonium or sulfoxonium salts of N-phosphonomethylglycine which comprises:(1) reacting N-phosphonomethylglycine, a compound of the formulawith a compound selected from the group consisting of those having the formulawherein R1, R2 and R3 are the same or different and are alkyl groups having from 1 to 4 carbon atoms or aromatic alkyl groups, X is chloride, bromide or iodide and Z is an electron pair or oxygen, orwherein R" R2 and R3 are the same of different and are alkyl groups having from 1 to 4 carbon atoms and are the same as in (a) above, R4 is an alkyl group having from 1 to 12 carbon atoms, aromatic or aromatic alkyl groups, X is chlorine or iodine, and Y is nitrogen or phosphorus, said reaction being conducted in the presence of a trialkylamine of the formulawherein each R is the same or different and is an alkyl group ranging from 4 to 13 carbon atoms, all in the presence of water and a polar functional organic solvent which is immiscible in water, said reaction being conducted at a temperature and for a sufficient period of time to cause completion of the reaction, and(2) isolating the end product by phase separation.The process is simpler and less expensive than other processes. |
56 |
Entgegengehaltene Patentdokumente/Zitate, in Recherche ermittelt |
CT |
US000004315765A US000004340761A US000004341549A
|
56 |
Entgegengehaltene Patentdokumente/Zitate, vom Anmelder genannt |
CT |
|
56 |
Entgegengehaltene Nichtpatentliteratur/Zitate, in Recherche ermittelt |
CTNP |
G.M. KOSOLAPOFF et al.: "Organic phosphorus compounds", vol. 2, 1972, pages 200-202, John Wiley & Sons, New York, USA 0
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56 |
Entgegengehaltene Nichtpatentliteratur/Zitate, vom Anmelder genannt |
CTNP |
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Zitierende Dokumente |
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Dokumente ermitteln
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Sequenzprotokoll |
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Prüfstoff-IPC |
ICP |
C07F 9/38
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