Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Fazhen Xue"'
Publikováno v:
Organic Letters. 14:5270-5273
An efficient asymmetric biomimetic transamination of α-keto esters with quinine derivatives as chiral bases was described. A wide variety of α-amino esters containing various functional groups can be synthesized in high yield and enantioselectivity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e472801688b09a168f52fb4a17c84c99
https://doi.org/10.1021/ol302427d
https://doi.org/10.1021/ol302427d
Publikováno v:
Tetrahedron. 68:6862-6867
This paper describes the effect of benzyl amine on the base-catalyzed transamination of α-keto esters. Among various benzyl amines examined, o -HOC 6 H 4 CH 2 NH 2 was found to be highly effective for the reaction, affording a wide variety of α-ami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fac56026b7be89cb717ec6da4cd9b35d
https://doi.org/10.1016/j.tet.2012.06.023
https://doi.org/10.1016/j.tet.2012.06.023
Publikováno v:
ChemInform. 44
It is found that the chiral bases (QUI) and (ALK) efficiently promote the asymmetric transamination of α-keto esters.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae78a8a132ea9c0b582c68e7f3c1e420
https://doi.org/10.1002/chin.201310049
https://doi.org/10.1002/chin.201310049
Publikováno v:
ChemInform. 44
Transamination of α-keto esters efficiently proceeds in the presence of a benzyl amine and triethylamine as catalyst.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2697677fc2a2d7a688acacc1e030e2db
https://doi.org/10.1002/chin.201301042
https://doi.org/10.1002/chin.201301042
Publikováno v:
ChemInform. 43
The reaction is applied to various γ-hydroxy- and γ-amino alkenes to afford the 2-substituted tetrahydrofurans and pyrroles.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f51773e9fde8101f6815ac8ecbb40c1
https://doi.org/10.1002/chin.201215099
https://doi.org/10.1002/chin.201215099
Publikováno v:
ChemInform. 42
Starting from acyclic olefins, the allylic products are obtained with excellent (E)-selectivity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f5f9d34688e63b560d37fc999e0b3f4
https://doi.org/10.1002/chin.201152028
https://doi.org/10.1002/chin.201152028
Publikováno v:
Organic letters. 13(24)
A chiral phosphoric acid catalyzed enantioselective bromocyclization of olefins is described. Various cis-, trans-, or trisubstituted γ-hydroxy-alkenes and γ-amino-alkenes can cyclize under the reaction conditions to give optically active 2-substit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1def0c546c6994f45dff5e726526ddc2
https://pubmed.ncbi.nlm.nih.gov/22092000
https://pubmed.ncbi.nlm.nih.gov/22092000
Publikováno v:
Organic letters. 13(21)
A strategy to construct the hexacyclic skeleton of trigonoliimines A, B and their derivatives involving a carbanion-triggered intramolecular cyclization of a seven-membered ring and a subsequent six-membered ring formation in one pot is described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c4dd3b60144390b2d199896d686662d
https://pubmed.ncbi.nlm.nih.gov/21988530
https://pubmed.ncbi.nlm.nih.gov/21988530
Publikováno v:
Journal of Organic Chemistry; 9/2/2011, Vol. 76 Issue 17, p7269-7274, 6p
Publikováno v:
Organic Letters; Nov2011, Vol. 13 Issue 21, p5827-5829, 3p