http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7687657-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_057954fc7ac20895649561fefed3a2ba |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5337 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-6552 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-65515 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5036 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03F7-029 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5537 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-95 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-76 |
| filingDate | 2005-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2010-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_43c9420c2383973ec4a01090d3b34d83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33a5c63553aa98e8bae9b2a606819432 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d41f7a75529f8592e3548b9a8d56be28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_395fb5133f79e12ea4496209ec46563a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d82f0b524c7d48b8f99699be7013e392 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c07399dd74b9a446fa4584170cbe7eb |
| publicationDate | 2010-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-7687657-B2 |
| titleOfInvention | Process for preparing acylphosphanes and derivatives thereof |
| abstract | The invention relates to a process for the preparation of (bis)acylphosphanes of formula I, wherein n and m are each independently of the other 1 or 2; R1 if n=1, is e.g. unsubstituted or substituted C 1 -C 18 alkyl or C 2 -C 18 alkenyl, or phenyl, R1 if n=2, is e.g. a divalent radical of the monovalent radical defined above; R2 is e.g. C 1 -C 18 alkyl, C 3 -C 12 cycloalkyl, C 2 -C 18 alkenyl, mesityl, phenyl, naphthyl; R3 is one of the radicals defined under R 1 ; the process comprises the steps a) contacting e.g. elemental phosphorous [P]∞, P(Hal) 3 with a reducing metal optionally in the presence of a catalyst or an activator in a solvent to obtain metal phosphides Me 3 P or Me′ 3 P 2 , wherein Me is an alkali metal and Me′ is an earth alkali metal or to obtain metal polyphosphides b) optionally adding a proton source, optionally in the presence of a catalyst or an activator to obtain metal dihydrogen phosphides MePH 2 ; c) subsequent acylation reaction with m acid halides of formula III or m carboxylic acid esters of formula IV or, in case that in formula I m=1, with one carboxylic ester of formula IV followed by one acid halide of formula III or vice versa, wherein R is the residue of an alcohol and R 2 is as defined above; d) alkylation reaction subsequent reaction with an electrophilic agent R 1 Hal or other electrophilic agents to obtain the compounds of formula I. An oxidation step may follow to obtain mono- and bisacylphosphane oxides or mono- and bisacylphosphane sulfides, which are used as photoinitiators. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9062082-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020049378-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11555081-B2 |
| priorityDate | 2004-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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