[EN] METHOD FOR THE INDUSTRIAL PRODUCTION OF 2-HALO-4,6-DIALKOXY-1,3,5-TRIAZINE AND THEIR USE IN THE PRESENCE OF AMINES [FR] PROCÉDÉ DE PRODUCTION INDUSTRIELLE DE 2-HALO-4,6-DIALCOXY-1,3,5-TRIAZINES ET LEUR UTILISATION EN PRÉSENCE D'AMINES
Practical Iron- and Cobalt-Catalyzed Cross-Coupling Reactions between N-Heterocyclic Halides and Aryl or Heteroaryl Magnesium Reagents
作者:Olesya M. Kuzmina、Andreas K. Steib、Sarah Fernandez、Willy Boudot、John T. Markiewicz、Paul Knochel
DOI:10.1002/chem.201500747
日期:2015.5.26
The reaction scope of iron‐ and cobalt‐catalyzed cross‐couplingreactions in the presence of isoquinoline (quinoline) in the solvent mixture tBuOMe/THF has been further investigated. Various 2‐halogenated pyridine, pyrimidine, and triazine derivatives were arylated under these mild conditions in excellent yields. The presence of isoquinoline allows us to perform Fe‐catalyzed cross‐coupling reactions
Ligand-Accelerated Iron- and Cobalt-Catalyzed Cross-Coupling Reactions between N-Heteroaryl Halides and Aryl Magnesium Reagents
作者:Olesya M. Kuzmina、Andreas K. Steib、John T. Markiewicz、Dietmar Flubacher、Paul Knochel
DOI:10.1002/anie.201210235
日期:2013.4.26
Quinoline and isoquinoline dramatically increase the rate and yield of Fe‐ and Co‐catalyzed cross‐couplingreactions. This new catalytic process extends the scope of such cross‐couplingreactions to include complex functional groups and allows heteroaryl–heteroaryl bond formation to occur.
METHOD FOR PRODUCING TRIAZINYL-SUBSTITUTED OXINDOLES
申请人:Karig Gunter
公开号:US20130345422A1
公开(公告)日:2013-12-26
Process for the preparation of triazinyl-substituted oxindoles of formula (3)
and salts thereof by reacting an oxindole (1) with a triazine (2) in the presence of a carbonate, a hydroxide, a phosphate or a mixture of two or more of the aforementioned compounds, and also the compounds of formula (3) and salts thereof (3″) and the use of both for producing crop protection agents.
Processes for preparing triazine compounds and quaternary ammonium salts
申请人:——
公开号:US20020123628A1
公开(公告)日:2002-09-05
In the process of the invention to prepare 4,6-dialkoxy-1,3,5-triazine-2-halide by reacting a cyanuric halide with an alcohol compound such as methanol in the presence of an alkali such as sodium hydrogencarbonate, the water content present in the reaction system at the beginning of the reaction is controlled to not more than 0.5 mol based on 1 mol of the cyanuric halide or the water content present in the reaction system during the period of the reaction is controlled to not more than 2.5 mol based on 1 mol of the cyanuric halide. According to the invention, 4,6-dialkoxy-1,3,5-triazine-2-halide can be prepared in a high yield.
A method of improving the stability of a quaternary ammonium salt and a method of efficiently preparing the quaternary ammonium salt having improved stability.