5089-22-5Relevant articles and documents
Palladium-catalyzed coupling of azoles or thiazoles with aryl thioethers via C-H/C-S activation
Zhu, Feng,Wang, Zhong-Xia
supporting information, p. 1601 - 1604 (2015/03/30)
Palladium-catalyzed cross-coupling via the Csp2-S bond activation of aryl thioethers and the C-H bond activation of azoles or thiazoles was carried out. Electron-deficient and -rich aryl methyl thioethers and diaryl thioethers can be employed as the coupling partners and the reaction tolerates a range of functional groups including MeO, CF3, CN, PhCO, CONEt2, and Py groups.
Method For Producing Bisbenzoxazoles
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Page/Page column 6, (2010/04/23)
The invention relates to a method for producing bisbenzoxazoles that are interconnected by means of a system of conjugated double bonds, according to which o-aminophenols are reacted with dicarboxylic acids, the carboxyl groups of which are interconnected via a double bond or a system of conjugated double bonds, to form an ammonium salt, said ammonium salt being converted in the presence of dehydrogenating catalysts and solvents with a low dielectric loss into benzoxazol by means of microwave radiation.
Eine einfache Methode zur Herstellung von Benzoxazolen
Seha, Zdenek,Weis, Claus D
, p. 413 - 419 (2007/10/02)
The preparation of benzoxazoles by a facile one-pot reaction is reported.The reaction of carboxylic acids with 2-chloro-N-methyl-Δ1-pyrrolinium chloride in an excess of N-methyl-2-pyrrolidone afforded carboxylic acid chlorides which were converted subsequently to their 2-hydroxyanilides by addition of 2-aminophenols.Cyclization of the 2-hydroxy-anilides at elevated temperatures furnished the benzoxazoles in high yield and purity.