Synthesis of novel nitrogen-containing ligands for the enantioselective addition of diethylzinc to aldehydes
作者:Marı́a Hechavarrı́a Fonseca、Ernst Eibler、Manfred Zabel、Burkhard König
DOI:10.1016/s0957-4166(03)00356-2
日期:2003.7
New nitrogen-containing ligands derived from the (1R,2R)-trans-cyclohexanediamine chiral core unit have been synthesized and fully characterized. Their catalytic activity was tested in the asymmetric addition of diethylzinc to aldehydes leading to the respective secondary alcohols with enantioselectivities of up to 74% ee. (C) 2003 Elsevier Science Ltd. All rights reserved.
Rhodium(<scp>iii</scp>)-catalyzed coupling of N-sulfonyl 2-aminobenzaldehydes with oxygenated allylic olefins through C–H activation
作者:Tingting Yang、Tao Zhang、Shangdong Yang、Shanshan Chen、Xingwei Li
DOI:10.1039/c4ob00704b
日期:——
N-Sulfonyl-2-aminobenzaldehyde undergoes C–H activation and coupling with oxygenated allylic olefins under redox-neutral conditions with high efficiency.
N-磺酰基-2-氨基苯甲醛在氧化性烯丙烯烯烃的还原中性条件下,经历C-H活化并高效耦合。
Discovery and development of benzene sulfonamide derivatives as anti-hepatic fibrosis agents
A novel benzene sulfonamide compound named IMB16-4 exhibits excellent anti-hepatic fibrosis activity in a recent study. To develop potential anti-hepatic fibrosis agents, a series of benzene sulfonamide derivatives were designed and synthesized based on the scaffold of the lead compound IMB16-4. As it turned out, most of the derivatives displayed potential anti-hepatic fibrosis activity, among which