Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Chuchi Tang"'
Publikováno v:
European Journal of Organic Chemistry. 2014:3163-3169
Multisubstituted 2-oxopyran-6-carboxylic acid derivatives were synthesized under mild reaction conditions through a base-promoted reaction between 3,4-dihydro-3-nitrochromen-2-ones and β,γ-unsaturated α-oxo esters to give products in excellent yie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::216e4c00e3cf93753ba6c58f2c713866
https://doi.org/10.1002/ejoc.201301876
https://doi.org/10.1002/ejoc.201301876
Publikováno v:
ChemCatChem. 6:649-654
A highly diastereo- and enantioselective organocatalyzed domino sulfa-Michael–Mannich reaction of 2-mercaptoquinoline-3-carbaldimines with maleimides has been developed. This approach provides a convenient and efficient access to multifuntionalized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8116b1c078adebe17f45317b9a29e902
https://doi.org/10.1002/cctc.201300993
https://doi.org/10.1002/cctc.201300993
Publikováno v:
Tetrahedron. 70:181-185
From l -amino acid, three chiral thiophosphonodiamides were prepared as new hydrogen bond donor organocatalysts. Under the mediation of the catalyst derived from l -valine, a tandem Michael addition/cyclization reaction between (E)-2-(2-nitrovinyl)ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::323e080e5df755889a4b2b32abdc1704
https://doi.org/10.1016/j.tet.2013.11.099
https://doi.org/10.1016/j.tet.2013.11.099
Publikováno v:
Advanced Synthesis & Catalysis. 355:2544-2549
The title reaction is optimized using a bifunctional tertiary amine-squaramide as catalyst.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac47f5d2954be77f9a28c54ab4d3cea4
https://doi.org/10.1002/adsc.201300552
https://doi.org/10.1002/adsc.201300552
Publikováno v:
Tetrahedron: Asymmetry. 24:953-957
We have developed an efficient bifunctional squaramide catalyst for the asymmetric tandem Michael addition–cyclization of malononitrile to functionalized nitroolefins. This organocatalytic asymmetric reaction provides convenient and valuable access
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f020c5dd7c458ef6e843cda47ae36f86
https://doi.org/10.1016/j.tetasy.2013.07.010
https://doi.org/10.1016/j.tetasy.2013.07.010
Publikováno v:
European Journal of Organic Chemistry. 2013:4844-4851
The organocatalytic asymmetric, one-pot, sequential Michael addition/dearomative bromination reaction of pyrazol-5-ones to nitro olefins and N-bromosuccinimide (NBS) has been developed. Under the catalysis of a chiral bifunctional squaramide, a wide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd917cee88868eadd6f4168cc2619b73
https://doi.org/10.1002/ejoc.201300460
https://doi.org/10.1002/ejoc.201300460
Publikováno v:
European Journal of Organic Chemistry. 2013:4836-4843
A highly diasterero- and enantioselective intramolecular Michael addition of keto-enones has been realized. By using the (R,R)-1,2-diphenylethane-1,2-diamine-based bifunctional primary amine-squaramide catalyst, the reaction proceeded smoothly to gen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54551ca70eaa401e2ef6446dceefa21a
https://doi.org/10.1002/ejoc.201300331
https://doi.org/10.1002/ejoc.201300331
Publikováno v:
Advanced Synthesis & Catalysis. 355:1053-1057
Optically active 2H-thiopyrano[2,3-b]quinolines with three contiguous stereocenters have been synthesized via a chiral bifunctional squaramide-catalyzed tandem Michael–Henry reaction between 2-mercaptoquinoline-3-carbaldehydes and nitroolefins. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cb02dd269809de47a66415dc8dbd072
https://doi.org/10.1002/adsc.201300086
https://doi.org/10.1002/adsc.201300086
Publikováno v:
European Journal of Organic Chemistry. 2013:2164-2171
A bifunctional squaramide based on (R,R)-11,12-diamino-9,10-ethylene-9,10-dihydroanthracene has been developed, and it has demonstrated great advantages over previously reported organocatalysts in the asymmetric Michael addition of 4-hydroxycoumarins
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::330bdc32d2da963d85d8a69f7edad5fa
https://doi.org/10.1002/ejoc.201201573
https://doi.org/10.1002/ejoc.201201573
Publikováno v:
The Journal of Organic Chemistry. 77:6208-6214
A primary amine-thiourea organocatalyzed intramolecular Michael addition access was developed for the synthesis of trans-dihydrobenzofurans. Under the catalysis of an (R,R)-1,2-diphenylethylamine derived primary amine-thiourea bearing a glucosyl scaf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc1ce66ee035b6ebd89e2a249d0838cc
https://doi.org/10.1021/jo301006e
https://doi.org/10.1021/jo301006e