Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Su Yong Shim"'
Autor:
Nelson Y. S. Lam, Zhoulong Fan, Kevin Wu, Han Seul Park, Su Yong Shim, Daniel A. Strassfeld, Jin-Quan Yu
Publikováno v:
J Am Chem Soc
The ability to differentiate and selectively activate remote C–H bonds represents a perennial challenge in the field of C–H activation. Since its first report in 2012, a now-established “directing template” (DT) approach remains demonstrably
Publikováno v:
Angewandte Chemie. 133:22410-22414
Highly enantioselective Darzens-type epoxidation of diazoesters with glyoxal derivatives was accomplished using a chiral boron-Lewis acid catalyst, which facilitated asymmetric synthesis of trisubstituted α,β-epoxy esters. In the presence of a chir
Publikováno v:
Flower Research Journal. 31:15-15
Autor:
Do Hyun Ryu, Su Yong Shim
Publikováno v:
Accounts of Chemical Research. 52:2349-2360
ConspectusBoron Lewis acid catalysis has a long history and has become one of the most powerful methods for organic synthesis. In addition to achiral boron catalysts such as BX3 (X = F, Cl, Br) and...
Publikováno v:
Journal of the American Chemical Society. 140:11184-11188
Chiral Lewis acid catalyzed asymmetric formation of cyclobutanones from α-silyloxyacroleins and α-alkyl or α-aryl diazoesters has been developed. In the presence of a chiral oxazaborolidinium ion catalyst, various α-silyloxycyclobutanones possess
Publikováno v:
Angewandte Chemie. 129:8789-8792
A Michael addition initiated cyclopropanation/retro-Claisen rearrangement tandem reaction was developed for the enantioselective synthesis of highly functionalized 2,5-dihydrooxepines. In the presence of a chiral oxazaborolidinium ion (COBI) catalyst
Publikováno v:
Journal of the Korean Society of Water and Wastewater. 29:243-249
To improve stability of the water resources that were seriously affected by climate change and various environmental effects and to supply the clean water always, continuous efforts are essential. Provision of measures with respect of hardware is bas
Publikováno v:
Tetrahedron. 75:130593
The asymmetric total synthesis of PGF2α and 6,15-diketo-PGF1α and formal synthesis of 6-keto-PGF1α from a common key intermediate are described. The key intermediate, which has a chiral cyclopentane backbone possessing suitable functional groups w
Publikováno v:
ChemInform. 47
Chiral oxazaborolidinium ion-catalyzed asymmetric cyclopropanation of α- or α,β-substituted acroleins with α-alkyl-α-diazoesters has been developed. With this methodology, chiral functionalized cyclopropanes containing a quaternary stereogenic c
Publikováno v:
Organic letters. 18(2)
Chiral oxazaborolidinium ion-catalyzed asymmetric cyclopropanation of α- or α,β-substituted acroleins with α-alkyl-α-diazoesters has been developed. With this methodology, chiral functionalized cyclopropanes containing a quaternary stereogenic c