Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Byung Tae Cho"'
Autor:
Da Hee Jung, Sung Min Ahn, Malk Eun Pak, Hong Ju Lee, Young Jin Jung, Ki Bong Kim, Yong-Il Shin, Hwa Kyoung Shin, Byung Tae Cho
Publikováno v:
eLife; 10/5/2020, p1-26, 26p
Publikováno v:
Tetrahedron. 62:8164-8168
A simple and convenient procedure for the reduction of aldehydes and ketones with sodium borohydride activated by solid acids such as boric acid, benzoic acid, and p-toluenesulfonic acid monohydrate under solvent-free conditions is described.
Autor:
Byung Tae Cho, Sung Hye Shin
Publikováno v:
Tetrahedron. 61:6959-6966
A simple and convenient synthesis of optically active alkenyl β-hydroxy sulfides with high enantiomeric excess by CBS-oxazaborolidine-catalyzed borane reduction of the corresponding β-keto sulfides and its application to synthesis of chiral alkenic
Autor:
Byung Tae Cho, Sang Kyu Kang
Publikováno v:
Tetrahedron. 61:5725-5734
A simple and convenient procedure for reductive amination of aldehydes and ketones using sodium borohydride activated by boric acid, p-toluenesulfonic acid monohydrate or benzoic acid as reducing agent under solvent-free conditions is described.
Autor:
Dong Jun Kim, Byung Tae Cho
Publikováno v:
Bulletin of the Korean Chemical Society. 25:1385-1391
and Dong Jun KimDepartmet of Chemistry, Hallym University, Chunchon 200-702, KoreaReceived June 7, 2004A general route for the synthesis of optically active unhindered aliphatic alcohols, where the steric demandsbetween two alkyl groups adjacent to t
Publikováno v:
Bulletin of the Korean Chemical Society. 24:1695-1698
Optically active β-dialkylamino alcohols and 1,2-diamines are not only a common structural component in a vast group of naturally occurring and synthetic molecules, but also can be widely used as versatile chiral building blocks and chiral catalysts
Autor:
Byung Tae Cho, Dong Jun Kim
Publikováno v:
Tetrahedron: Asymmetry. 12:2043-2047
A simple, efficient synthesis of optically active β-hydroxy p -tolylsulfones with >99% e.e. by employing CBS–oxazaborolidine-catalyzed asymmetric borane reduction of β-keto p -tolylsulfones using N -ethyl- N - iso -propylaniline–borane complex
Autor:
Ok Kyoung Choi, Byung Tae Cho
Publikováno v:
Tetrahedron: Asymmetry. 12:903-907
A facile synthesis of (1 S ,2 R )-indene oxide with >99% e.e. and (1 S ,2 S )- trans -2-bromo-1-indanol with 87% e.e. has been established by employing CBS-oxazaborolidine-catalyzed asymmetric borane reduction of 2- p -toluenesulfonyloxy-1-indanone u
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :1204-1211
A very convenient asymmetric synthesis of 1,2-diol monosulfonates and terminal epoxides with high optical purity via oxazaborolidine-catalyzed asymmetric borane reduction of α-sulfonyloxy ketones using N-ethyl-N-isopropylaniline–borane complex as
Autor:
Byung Tae Cho, Oh Kyoung Choi
Publikováno v:
Organic Preparations and Procedures International. 32:493-497