Zobrazeno 1 - 10
of 191
pro vyhledávání: '"Seiji Shirakawa"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 20, Iss 1, Pp 1794-1799 (2024)
Enantioselective halolactonizations of sterically less hindered alkenoic acid substrates without substituents on the carbon–carbon double bond have remained a formidable challenge. To address this limitation, we report herein the asymmetric bromola
Externí odkaz:
https://doaj.org/article/0d7d1923cde544ed88840e116616e919
Publikováno v:
Tetrahedron Chem, Vol 6, Iss , Pp 100037- (2023)
The synthetic utility of onium salts is widely recognized in organic chemistry. Among the wide variety of onium salt compounds, quaternary ammonium and phosphonium salts are known as representative organocatalysts. Although the catalytic abilities of
Externí odkaz:
https://doaj.org/article/884d3194156b4a7ab0243cc354162638
Publikováno v:
Advanced Synthesis & Catalysis. 365:1496-1504
Publikováno v:
Organic & Biomolecular Chemistry. 21:4002-4006
A catalytic asymmetric CO2 utilization reaction for the enantioselective synthesis of chiral 2-oxazolidinones was realized via chiral bifunctional selenide-catalyzed bromocyclization.
Publikováno v:
Organic & Biomolecular Chemistry. 21:3263-3275
Recent advances in chiral sulfide-catalyzed asymmetric halocyclizations are summarized.
Publikováno v:
Chemical and Pharmaceutical Bulletin. 70:599-604
1,1′-Bi-2-naphthol (BINOL)-derived chiral bifunctional sulfide and selenide catalysts that possess a hydroxy group are known to be effective catalysts for enantioselective bromolactonizations. When applied to asymmetric iodolactonizations of 4-pent
Autor:
Seiji Shirakawa
Publikováno v:
The Chemical Record.
Autor:
Bun Chan, Seiji Shirakawa
Publikováno v:
Canadian Journal of Chemistry.
In this study, we used computational quantum chemistry to investigate the cation affinity for a range of nucleophiles to gauge the possibility of using organochalcogens as catalysts for cation transfer (reference data and geometries are provided in t
Publikováno v:
Chirality. 34:915-924
Although the wide variety of heterocyclic compounds is common knowledge, chiral 2-oxazolidinones are recognized as some of the most important heterocycles in medicinal chemistry. Many important pharmaceutical molecules have been constructed based on
Publikováno v:
The Journal of Organic Chemistry.