http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105924425-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N43-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D335-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D335-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N43-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01P13-00 |
| filingDate | 2016-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105924425-B |
| titleOfInvention | A kind of method for preparing dihydro sulphur chroman derivative |
| abstract | The invention discloses a kind of methods for preparing dihydro sulphur chroman derivative, comprise the following steps：Under the conditions of existing for HMPA, using allylic bromination samarium as reducing agent, β arylthio ketone occurs to be coupled cyclization in THF, and reaction terminates the dihydro sulphur chroman derivative described in post-treated obtain.What this method realized thiophenyl using allylic bromination samarium for the first time efficiently removes aromatization reaction, without utilizing gem-dimethyl effect, you can realize that the α positions of S are unsubstituted and have the synthesis of various mono-substituted dihydro sulphur chromans high cis-selectivity.Synthesized dihydro sulphur chromanol can obtain sulphur chromanol through DDQ processing, such compound is tested through activity of weeding, and 85.8% is may be up to the inhibiting rate of the growth of Amaranthus retroflexus root, close to the positive control inhibiting rate of 2,4 D. |
| priorityDate | 2016-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.