http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1079216-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5352 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N57-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N57-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-535 |
| filingDate | 1964-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c34543add3e41e8403c08bc677740f66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ce15cd78eac5b295c7a51fd23b17327 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3d877ba6410c250e6cb80f4da18ed79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd5da8e426b437262e8d07ec8c7b25c8 |
| publicationDate | 1967-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1079216-A |
| titleOfInvention | Ylenals and process for their production |
| abstract | The invention comprises ylenals, (i.e. compounds which in the same molecule contain a phosphorylene group and an aldehyde group in conjunction) of the formula <FORM:1079216/C2/1> where Ar is an aryl radical which may be substituted by alkyl or alkoxy groups; R1, R2 and R3 are H or alkyl groups and n is an integer from 1 to 6. They may be obtained by reacting a proton acceptor in liquid phase with a quaternary phosphonium salt of the formula <FORM:1079216/C2/2> where X(-) is a monovalent anion. Suitable proton acceptors are bases having a pK value below or about 9 such as alcoholates, ammonia, amines, e.g. alkylamines or heterocyclic amines, or aqueous alkali. Suitable solvents are water, dimethyl-formamide or sulphoxide, acetonitrile, alcohol, hydrocarbons, halogenated hydrocarbons or mixtures thereof. Specified products are triphenylphosphine-2-formylpropen-1-yl-1-methylene, triphenylphosphine-3-formylpropen-(2)-yl-2-methylene, triphenylphosphine-2 - methyl - 4 - formylbutadien - (1,3) - yl - 1 - methylene, triphenylphosphine-1-methyl-4-formylbutadiene - (1,3) - yl - 1 - methylene, and triphenylphosphine - 2,6 - dimethyl - 6 - formylhexatrien - (1,3,5) - yl - 1 - methylene. Examples are given for the preparation of triphenylphosphine - 2 - formylpropen - 1 - yl-methylene. The products are intermediates for the synthesis of dyes, pharmaceuticals, plant protection agents, food dyes and carolenoids. The phosphonium salts of Formula I may be obtained by reacting a suitable halogen compound with a triarylphosphine in an organic solvent. |
| priorityDate | 1963-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.