http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-960000907-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-4056 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-40 |
| filingDate | 1995-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1996-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-960000907-A |
| titleOfInvention | Method for preparing sterically hindered hydroxybenzylphosphonate |
| abstract | A) A phenol of the following general formula (II) is reacted with an amine, formaldehyde or para formaldehyde of the following general formula (III) and an amphoteric asset H n A to generate a salt of the following general formula (IV), and B) formation One reaction water is distilled off, and C) hydroxy of formula (I) comprising reacting the reaction mixture, or salt (IV) isolated therefrom, with trialkyl phosphite of formula (V) Processes for preparing benzylphosphonates are described:n n n n n n n n n n n n n Wherein H n A is an organic or inorganic acid having n (1,2,3 or 4) protons and R 1 and R 2 are independently of each other C 1 -C 12 alkyl, C 5 -C 7 cycloalkyl R 3 and R 4 independently of one another are C 1 -C 12 alkyl or they are combined with a nitrogen atom bonded to them to form a piperidyl or morpholinyl radical, and R 5 , R 6 and R 7 are Independently of one another are C 1 -C 4 alkyl.n n n The compound of general formula (I) is reacted with base M (OH) m (wherein m is 1 or 2) to produce salts of the general formula (Ia) below, where M is an alkali metal or ammonium and m = 1), it can be reacted with a salt of an alkaline earth metal to produce a salt of formula (Ia) wherein M is an alkaline earth metal and m is 2:n n n n n n n n Compounds of formulas (I) and (Ia) are suitable, for example, as process stabilizers for plastics. |
| priorityDate | 1994-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.