56894-66-7Relevant academic research and scientific papers
Ag-and Au-catalyzed addition of alcohols to ynimides: β-regioselective carbonylation and production of oxazoles
Sueda, Takuya,Kawada, Arisa,Urashi, Yumi,Teno, Naoki
supporting information, p. 1560 - 1563 (2013/06/26)
Metal-catalyzed reactions of ynimides with alcohols to afford β-ketoimides and oxazoles are demonstrated. The triple bond of ynamides is generally activated by mineral acids or metal salts to lead to the regioselective addition of nucleophiles at the α-C-
Aromatic Carbonylation Regio-Controlled by Oxazole and Isoxazole Rings, Novel Route to Heterocycle-Substituted o-Benzoates
Sakakibara, Tsutomu,Kume, Takashi,Ohyabu, Takahiro,Hase, Tsunao
, p. 1694 - 1697 (2007/10/02)
3,5-Diphenylisoxazole and 2,5-diphenyloxazole were regioselectively carbonylated under an atmosphere of carbon monoxide after the formation of arylpalladium(II) intermediates, to give bioactive o-benzoates substituted by isoxazole and oxazole rings in goo
Oxadiazole benzoic acid derivatives as herbicides
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, (2008/06/13)
New 2-(1,3,4-oxadiazole-2-yl) benzoic acids and salts and esters thereof, as well as certain 2-(2-oxazolyl) benzoic acids, salts and esters, having the formula: SPC1 Where X is nitrogen or C-R" (R" being hydrogen or methyl), R is phenyl or various substituents, and R' and the Y's are hydrogen or various substituents, are effective preemergence or postemergence herbicides, on various crops. The chemicals act selectively and are useful against purple nutsedge and in cranberry. Oxadiazoles of the invention may be made by reacting a benzhydrazide with phthalic anhydride to form a hydrazide which is cyclized by removal of the elements of water, using as a catalyst fuming sulfuric acid or dimethylformamide-sulfur trioxide complex.
