The present invention relates to novel PPAR agonist compounds as well as pharmaceutical compositions containing them.
The compounds according to the invention are of quite particular therapeutic interest, notably for treating diabetes and/or dyslipidemias, as well as for preventing cardiovascular pathologies.
Selective Oxidation of Alcohols to Esters Using Heterogeneous Co<sub>3</sub>O<sub>4</sub>–N@C Catalysts under Mild Conditions
作者:Rajenahally V. Jagadeesh、Henrik Junge、Marga-Martina Pohl、Jörg Radnik、Angelika Brückner、Matthias Beller
DOI:10.1021/ja403615c
日期:2013.7.24
Novel cobalt-based heterogeneous catalysts have been developed for the direct oxidative esterification of alcohols using molecular oxygen as benign oxidant. Pyrolysis of nitrogen-ligated cobalt(II) acetate supported on commercial carbon transforms typical homogeneous complexes to highly active and selective heterogeneous Co3O4-N@C materials. By applying these catalysts in the presence of oxygen, the
新型钴基多相催化剂已被开发用于使用分子氧作为良性氧化剂对醇进行直接氧化酯化。商业碳上载氮连接的乙酸钴 (II) 的热解将典型的均质配合物转化为高活性和选择性的异质 Co3O4-N@C 材料。通过在氧气存在下使用这些催化剂,醇的交叉和自酯化以良好的产率进行。
A “universal” catalyst for aerobic oxidations to synthesize (hetero)aromatic aldehydes, ketones, esters, acids, nitriles, and amides
作者:Thirusangumurugan Senthamarai、Vishwas G. Chandrashekhar、Nils Rockstroh、Jabor Rabeah、Stephan Bartling、Rajenahally V. Jagadeesh、Matthias Beller
DOI:10.1016/j.chempr.2021.12.001
日期:2022.2
compounds are indispensable chemicals widely used in basic and applied sciences. Among these, especially aromatic aldehydes, ketones, carboxylic acids, esters, nitriles, and amides represent valuable fine and bulk chemicals, which are used in chemical, pharmaceutical, agrochemical, and material industries. For their synthesis, catalytic aerobic oxidation of alcohols constitutes a green, sustainable, and cost-effective
功能化(杂)芳族化合物是基础和应用科学中广泛使用的不可或缺的化学品。其中,尤其是芳香醛、酮、羧酸、酯、腈和酰胺是有价值的精细和大宗化学品,可用于化学、制药、农业化学和材料工业。对于它们的合成,醇的催化有氧氧化构成了一种绿色、可持续且具有成本效益的工艺,理想情况下应该利用活性和选择性的 3D 金属。在这里,我们报告了通过在碳上热解钴-哌嗪-酒石酸络合物作为最通用的氧化催化剂,制备包裹在 Co-纳米颗粒中的石墨层。这种独特的材料可以合成简单、功能化和结构多样的(杂)芳香醛、酮、
An Efficient Synthesis of 5-Bromo-2-methoxy-6-methylaminopyridine-3-carboxylic Acid.
作者:Yoshimi HIROKAWA、Tamaki HORIKAWA、Shiro KATO
DOI:10.1248/cpb.48.1847
日期:——
-25 degrees C gave a mixture of methyl 2-fluoro-6-methylaminopyridine-3-carboxylate (13) and the regioisomer 14 in a ratio of 57 : 43. On the other hand, reaction of 12 and methyl 2,6-dichloropyridine-3-carboxylate (16) with sodium methoxide in tetrahydrofuran (THF) and CH2Cl2 provided the 2-methoxypyridine-3-carboxylic esters 20 and 23, respectively, as main products. Similar reaction of 16 in N,N-dimethylformamide
6-methoxylation, esterification, followed by microwave-induced reaction with p-methoxybenzylamine, and final deprotection under flow reaction hydrogenation conditions. Two key steps in the reported synthesis are a microwave-induced methoxylation and a microfluidic hydrogenation that afford improved regioselectivity and purity profile of the reaction products.