Hydrodefluorinations of trifluorotoluenes by LiAlH4 and TiCl4
摘要:
In the presence of 2 mol% of TiCl4, alpha,alpha,alpha-trifluorotoluene derivatives were reduced with LiAlH4 to furnish toluene derivatives in high yields. Selective reduction of bis(trifluoromethyl)benzene derivative is effected. The difference of the reactivity between TiCl4 and NbCl5 is also discussed. (C) 2013 Elsevier B.V. All rights reserved.
Anchored Pd(0) Nanoparticles on Synthetic Talc for the Synthesis of Biaryls and a Precursor of Angiotensin II Inhibitors
作者:Nelson Luís C. Domingues、Beatriz F. dos Santos、Beatriz A. L. da Silva、Aline R. de Oliveira、Maria H. Sarragiotto
DOI:10.1055/s-0040-1705989
日期:2021.3
cost-effective, and reusable palladium catalysts supported on synthetic talc for the Suzuki–Miyaura reaction. From the results, key points were identified: both designed catalysts accelerated the reaction in EtOH and an open-flask setup, affording moderate to excellent yields within a short time (e.g., 30 min) even for deactivated aryl halides; the protocol can be applied to a great number of both cross-coupling
Use of Strobilurin Type Compounds for Combating Phytopathogenic Fungi Resistant to QO Inhibitors
申请人:BASF SE
公开号:US20140323305A1
公开(公告)日:2014-10-30
The present invention relates to the use of strobilurine type compounds of formula I and the N-oxides and the salts thereof for combating phytopathogenic fungi containing a mutation in the mitochondrial cytochrome b gene conferring resistance to Qo inhibitors, and to methods for combating such fungi. The invention also relates to novel compounds, processes for preparing these compounds, to compositions comprising at least one such compound, to plant health applications, and to seeds coated with at least one such compound.
[EN] EFFICIENT CATALYST FOR THE FORMATION OF POLYARYL HYDROCARBONS SUITABLE AS PRECURSORS FOR POLYDENTATE ORGANOPHOSPHORUS CATALYST LIGANDS<br/>[FR] CATALYSEUR EFFICACE POUR LA FORMATION D'HYDROCARBURES POLYARYLE APPROPRIÉS EN TANT QUE PRÉCURSEURS POUR DES LIGANDS DE CATALYSEURS ORGANOPHOSPHORÉS POLYDENTÉS
申请人:EASTMAN CHEM CO
公开号:WO2018044824A1
公开(公告)日:2018-03-08
The disclosure relates to the efficient preparation of aromatic hydrocarbons useful as intermediates for di-, tri-, tetra- and poly-dentate organophosphorus ligands having value in particular as hydroformylation catalysts. The use of triarylphosphine halide catalysts have been found to be more efficient in forming these intermediates by the use of excess triarylphosphine in an amount beyond what is required to form a coordination complex.
Sulfonamide compounds and uses thereof as medicines
申请人:Fujisawa Pharmaceutical Co. Ltd.
公开号:US06573274B1
公开(公告)日:2003-06-03
The present invention relates to a sulfonamide compound of the formula (I):
wherein each symbol is as defined in the specification, a salt thereof, and a pharmaceutical composition containing same. This compound can be an effective agent for the prophylaxis and treatment of the diseases curable based on a hypoglycemic action, and the diseases curable based on a cGMP-PDE inhibitory action, a smooth muscle relaxing action, a bronchodilating action, a vasodilating action, a smooth muscle cell inhibitory action and an allergy suppressing action.