http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01238551-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_067fa7a6d043b14968b8dca94aa94e37 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C47-347 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C47-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-347 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate | 1989-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e4bd06a31669958db404125e5632c7c6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c6186740357a77e5bc1a3465ce86587 |
| publicationDate | 1989-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01238551-A |
| titleOfInvention | Preparation of cycloaliphatic aldehyde |
| abstract | PURPOSE: To easily and profitably obtain a (optically active) cycloaliphatic aldehyde by cyclizing a (optically active) enol ester with an acidic cyclizing agent such as protic acid, an org. or inorg. acid or a Lewis acid. n CONSTITUTION: A compd. of formula I [wherein the wavy line indicates a C-O bond of cis or trans configuration; Y is acyl or P(O) (OR) 2 ; R is lower alkyl or aryl; and Z is a group of formula II (where R 5 is lower alkyl or H), etc.] is cyclized in the presence of an acidic cyclizing agent at 0-100°C to obtain the objective cycloaliphatic aldehyde of formula III (wherein R 0 -R 2 are each H or 1-6C alkyl; and X is a group of formula IV, etc.). Protic acid, an org. or inorg. acid or a Lewis acid may be used as the acidic cyclizing agent and sulfuric acid, phosphoric acid, acetic acid, TiCl 4 or BF 3 is suitable for use as the agent. The cycloaliphatic aldehyde is useful as an intermediate of a compd. used in the field of flavor and fragrance industries. n COPYRIGHT: (C)1989,JPO |
| priorityDate | 1988-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.