Simple and efficient oxidation of sulfides to sulfones using catalytic ruthenium tetroxide
作者:Carmen Ma Rodríguez、Jesús M. Ode、José Ma Palazón、Victor S. Martin
DOI:10.1016/s0040-4020(01)88494-5
日期:1992.1
A procedure for the oxidation of sulfides to sulfonesusing ruthenium tetroxide as catalyst and periodic acid as stoichiometric oxidant in a biphasic system (CCl4, CH3CN, H2O) is reported.
New Methodology for Obtention of Some α-Methylsulfanyl Sulfones, Synthetic Precursors of Carbonyl Compounds
作者:B. Wladislaw、L. Marzorati、C. Di Vitta、N. F. Claro
DOI:10.1080/00397919608003753
日期:1996.9
Abstract The reaction of some α-phenylsulfonyl carboxylic acids with NaH in DMSO and dimethyl disulfide leading to α-methylsulfanyl alkyl phenyl sulfones is described.
摘要 描述了一些 α-苯基磺酰基羧酸与 NaH 在 DMSO 和二甲基二硫醚中反应生成 α-甲基硫烷基烷基苯基砜。
Ni/Ir-Catalyzed Photoredox Decarboxylative Coupling of S-Substituted Thiolactic Acids with Heteroaryl Bromides: Short Synthesis of Sulfoxaflor and Its SF<sub>5</sub>
Analog
作者:Oleksandr S. Kanishchev、William R. Dolbier
DOI:10.1002/chem.201701627
日期:2017.6.7
bonds between alkyl chains and aromatic systems, including electron‐deficient heteroaryls, which are known to be challenging coupling partners. In this article, we disclose the Ni/Ir‐catalyzed photoredox decarboxylative coupling of readily available S‐substituted thiolactic acids with electron‐deficient heteroarylbromides, which resulted in the formation of simple but otherwise not easily accessible
[EN] TETRAHYDROCARBAZOLES AND DERIVATIVES<br/>[FR] TETRAHYDROCARBAZOLES ET DERIVES
申请人:HOFFMANN LA ROCHE
公开号:WO2005092856A1
公开(公告)日:2005-10-06
The present invention relates to compounds of the formula (I) wherein R1, R2, R3, R4, R5, X1, X2, X3, X4, n, and k are defined in the description and claims, and pharmaceutically acceptable salts and/or pharmaceutically acceptable esters thereof. The compounds are useful for in the treatment and prophylaxis of diseases which are modulated by LXRα and/or LXRß agonists, including increased lipid and cholesterol levels, particularly low HDL-cholesterol, high LDL-cholesterol, atherosclerotic diseases, diabetes, particularly non-insulin dependent diabetes mellitus, metabolic syndrome, dyslipidemia, Alzheimer's disease, sepsis, inflammatory diseases such as colitis, pancreatitis, cholestasis/fibrosis of the liver, and diseases that have an inflammatory component such as Alzheimer's disease or impaired/improvable cognitive function.
The present invention relates to compounds of the formula (I)
wherein R
1
, R
2
, R
3
, R
4
, R
5
, X
1
, X
2
, X
3
, X
4
, n, and k are defined in the description and claims, and pharmaceutically acceptable salts and/or pharmaceutically acceptable esters thereof. The compounds are useful for in the treatment and prophylaxis of diseases which are modulated by LXRα and/or LXRβ agonists, including increased lipid and cholesterol levels, particularly low HDL-cholesterol, high LDL-cholesterol, atherosclerotic diseases, diabetes, particularly non-insulin dependent diabetes mellitus, metabolic syndrome, dyslipidemia, Alzheimer's disease, sepsis, inflammatory diseases such as colitis, pancreatitis, cholestasis/fibrosis of the liver, and diseases that have an inflammatory component such as Alzheimer's disease or impaired/improvable cognitive function.