| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_01733884cc888894a4579e6d14f90508 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2103-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2103-40 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-325
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D317-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C13-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C13-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-67
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D221-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C43-21
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C22-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C25-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D221-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-67
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-26 |
| filingDate |
2015-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2017-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e6bf3975f88815c0f597e0e413c96eea
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c543fe5f37fea6904757c3374307337a |
| publicationDate |
2017-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9676679-B2 |
| titleOfInvention |
Traceless directing groups in radical cascades: from oligoalkynes to fused helicenes without tethered initators |
| abstract |
The present disclosure is directed to a traceless directing group in a radical cascade. The chemo- and regioselectivity of the initial attack in skipped oligoalkynes is controlled by a propargyl alkoxy moiety. Radical translocations lead to the boomerang return of radical center to the site of initial attack where it assists to the elimination of the directing functionality via β-scission in the last step of the cascade. In some aspects, the reaction of the present invention is catalyzed by a stannane moiety, which allows further via facile reactions with electrophiles as well as Stille and Suzuki cross-coupling reactions. This selective radical transformation opens a new approach for the controlled transformation of skipped oligoalkynes into polycyclic ribbons of tunable dimensions. |
| priorityDate |
2014-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |