http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-754053-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a3ae63500ac7f6553fdf267a475ed01c |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-14 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C409-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-53 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C409-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C407-00 |
| filingDate | 1954-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1956-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-754053-A |
| titleOfInvention | Splitting up of hydroperoxides of aromatic hydrocarbons by means of an acid catalyst |
| abstract | Phenols and aldehydes or ketones are formed by the cleavage of aromatic hydroperoxides by passing a gas containing 1-5 per cent by volume of hydrogen chloride through a solution of the hydroperoxide in a hydrocarbon. The solution may be of the hydroperoxide in its parent hydrocarbon prepared by partial oxidation of that hydrocarbon. Hydroperoxides specified are those of isopropyl benzene, p-methyl isopropyl benzene, ethyl benzene, diphenyl methane, 1:1 diphenyl ethane, di-p-tolyl methane, 1:1 di-p-tolyl ethane, and cyclohexyl benzene, which are converted according to the process of the invention to phenols, such as phenol or p-cresol, and aldehydes such as acetaldehyde, benzaldehyde or p-tolualdehyde, or ketones such as acetone, acetophenone, p-methyl-acetophenone or cyclohexanone. The gas catalyst, consisting of an inert gas such as air, carbon dioxide or nitrogen containing hydrogen chloride, is passed continuously or intermittently through the stirred solution of the hydroperoxide maintained at below 50 DEG C. The catalyst may be recycled. On completion of the reaction, the gas catalyst may be removed by passing the inert gas alone through the reaction mixture which may then be neutralized with dry ammonia gas, alkali metal hydroxides, soda, calcium oxide, or calcium carbonate, and the products isolated by distillation, or the phenols may be extracted with an alkali metal hydroxide solution. In an example, air containing hydrogen chloride is passed through a stirred solution of 1:1 di-p-tolyl ethane hydroperoxide in 1:1 di-p-tolyl ethane with cooling to form p-cresol and p-methyl acetophenone. Other examples include the cleavage of cumene hydroperoxide under similar conditions to form phenol and acetone and the cleavage of di-tolyl methane with hydrogen chloride in nitrogen to form cresols and tolualdehydes. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S4945854-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2881222-A |
| priorityDate | 1953-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 76.