Aminoketone, oxazole and thiazole synthesis. Part XIII. 1 new 2-aryl-6-phenyloxazoles with 4-methyl or 4-isopropyl groups
Benzoylation of (±)-α-alanine and (±)-valine followed by cyclization afforded the corresponding azlactones, which reacted with benzene, toluene, o- and m-xylene yielding substituted N-benzoyl-phenacylamines. Their cyclization in the presence of phosphorus oxychloride led to the title compounds whose electronic and NMR spectra (1H and 13C) are presented.
Schiketanz, Iosif,Istrati, Daniela,Drǎghici, Constantin,Balaban, Alexandru T.
p. 137 - 142
(2007/10/03)
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