http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3872602-D1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dcb88e6c103e4974b104452c51fbb4a5 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C33-20 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C33-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C22-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate | 1988-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1992-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6bef8d9188f575b6da51eee3fa81006 |
| publicationDate | 1992-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-3872602-D1 |
| titleOfInvention | METHOD FOR PRODUCING 3-PHENYL-2-METHYLPROPANOL AND ITS P-SUBSTITUTED ALKYL DERIVATIVES. |
| abstract | In prodn. of opt; p-alkyl-substd.3-phenyl-2-methyl -propanol derivs. of formula (I), a methallyl-benzene deriv. (IIa) or its mixt. with the corresp. isobutenyl-benzene (IIb) is subjected to peroxide-catalysed addition of HBr; the resulting bromo cpd. (IIIa) or (IIIb) is reacted with a carboxylic acid alkali salt (to which an acid and/or a polar solvent are optionally added) at 100-200 deg.C or at up to reflux temp., the molar ratio of bromo cpd. to alkali salt being up to 1:10; and the resulting ester (IV) is hydrolysed or trans-esterified with a low-boiling alcohol. (In the formulae, R1 = H, CH3, C2H5, isopropyl or tert-butyl; R1 being in the p-position andopt. accompanied by positional isomers; R2 = H, CH3, C2H5, n-propyl or isopropyl; M = alkali metal). HBr is pref. used in amt. stoichiometrically equivalent to all of the isomers of formulae (IIa) and (IIb) and the addition reaction is pref. carried out at 0-20 deg.C. The bromo cpd. (IIIa,b) is pref. reacted with a 1-4C carboxylic acid alkali salt, pref. CH3XOONa or CH3COOK, generally at 100-200 (pref. 120-180)deg.C, the molar ratio of bromo cpd. to alkali salt pref. being 1:1 or 1:2. |
| priorityDate | 1987-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.