Cobalt and Manganese Salts of p -Aminobenzoic Acid Supported on Silica Gel: A Versatile Catalyst for Oxidation by Molecular Oxygen
作者:Mohammed M. Hashemi、Yusef Ahmadibeni
DOI:10.1007/s00706-002-0534-3
日期:2003.2.1
A 1:1 molar ratio of the cobalt and manganese salts of p -amino benzoic acid supported on silica gel is an effective catalyst for the oxidation of various organic compounds in reasonable yields using molecular oxygen. The catalyst can be reused several times.
Synthesis and application of chitosan supported vanadium oxo in the synthesis of 1,4-dihydropyridines and 2,4,6-triarylpyridines <i>via</i> anomeric based oxidation
作者:Maliheh Safaiee、Bahar Ebrahimghasri、Mohammad Ali Zolfigol、Saeed Baghery、Abbas Khoshnood、Diego A. Alonso
DOI:10.1039/c8nj02062k
日期:——
area electron diffraction (SAED), X-ray photoelectron spectroscopy (XPS) and inductively coupled plasma mass spectrometry (ICP-MS). The synthesized catalyst has been successfully used as a reusable catalyst in the synthesis of dihydropyridines and triarylpyridines.
USY-zeolite catalyzed synthesis of 1,4-dihydropyridines under microwave irradiation: structure and recycling of the catalyst
作者:Leonardo H.R. Alponti、Monize Picinini、Ernesto A. Urquieta-Gonzalez、Arlene G. Corrêa
DOI:10.1016/j.molstruc.2020.129430
日期:2021.3
therapeutically and also as visible‐light photoredox catalysts. In this work we report the application of an ultra-stable (US) Y zeolite as a promising green catalyst in the synthesis of a series of 1,4-dihydropyridines undermicrowaveirradiation. Using the optimized reaction conditions, 21 compounds were prepared in 64-96% isolated yields. The recovery and recycle of the USY zeolite are also reported as well
One-Pot Synthesis and Aromatization of 1,4-Dihydropyridines in Refluxing Water
作者:Guan-Wu Wang、Jing-Jing Xia
DOI:10.1055/s-2005-870022
日期:——
A series of 1,4-dihydropyridines were synthesized in an environmentally benign method, by reacting aldehydes with acetoacetate esters or acetylacetone and ammonium acetate in refluxing water. The thus formed 1,4-dihydropyridines was subsequently oxidized in one-pot to the corresponding pyridine derivatives by either ferric chloride or potassium permanganate.
Chemical compounds having ion channel blocking activity for the treatment of immune dysfunction
申请人:——
公开号:US20020119989A1
公开(公告)日:2002-08-29
The present invention relates to chemical compounds having inhibitory activity on an intermediate conductance Ca 2+ activated potassium channel (IK Ca), and the use of such compounds for the treatment or alleviation of diseases or conditions relating to immune dysfunction. Moreover, the invention relates to a method of screening a chemical compound for inhibitory activity on an intermediate conductance Ca 2+ activated potassium channel (IK Ca).