http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3598842-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e010c50bd6cb462c3006c00b980252b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-79 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-78 |
| filingDate | 1969-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1971-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a38d26aa72d4ec172558366486b540b3 |
| publicationDate | 1971-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3598842-A |
| titleOfInvention | Process for the preparation of alkylated 2,3-dihydrobenzo-furans and alkylated 2,3-dhydro-naphthofurans |
| abstract | A PROCESS IS DEFINED FOR THE PREPARATION OF CYCLIC ETHERS BY THE CONDENSATION OF PHENOLICS, SUCH AS PHENOL, WITH CERTAIN ALDEHYDES CONTAINING TERTIARY CARBON ATOMS, SUCH AS ISOBUTYRALDEHYDE, USING A STRONG ACID CATALYST, SUCH AS H2SO4. THE SINGLE RING PHENOLICS PRODUCE ALKYLATED COUMARAN TYPE CYCLIC ETHERS SUCH AS 2,2-DIMETHYL COUMARAN. THE TWO CONDENSED RING PHENOLICS, SUCH AS BETANAPHTHOL, PRODUCE THE ALKYLATED NAPHTHOFURAN TYPE CYCLIC ETHERS. BETA-NAPHTHOL IS UNIQUE IN ALSO PRODUCING 3,4,5,6DINAPHTHO-2-ISOPROPYLPYRAN, A COMPOSITION OF MATTER USEFUL AS AN ULTRAVIOLET LIGHT ABSORBER. THE AQUEOUS HYDROGEN HALIDES ARE UNIQUE IN PROMOTING THE SELECTIVE CONDENSATION OF META-CRESOL WITH ISOBUTYRALDEHYDE FROM ADMIXTURE WITH PARA-CRESOL TO ALLOW FOR THE SEPARATION AND RECOVERY OF SUBSTANTIALLY PURE PARA-CRESOL. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4540800-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3940364-A |
| priorityDate | 1969-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 90.