38560-29-1Relevant academic research and scientific papers
Synthesis of 2,3-dihydro-4(1H)-quinolones and the corresponding 4(1H)-quinolones via low-temperature fries rearrangement of N-arylazetidin-2- ones
Lange, Jens,Bissember, Alex C.,Banwell, Martin G.,Cade, Ian A.
experimental part, p. 454 - 470 (2011/10/09)
N-Arylazetidin-2-ones of the general form 1, which are readily prepared by GoldbergBuchwald-type copper-catalyzed coupling of N-unsubstituted azetidin-2-ones with the relevant aryl halide or using Mitsunobu cyclization processes, undergo smooth Fries-rearrangement in triflic acid at 018°C to give the isomeric 2,3-dihydro-4(1H)-quinolones (2). Dehydrogenation of the latter compounds using 10% Pd on C in 1.0M aqueous sodium hydroxide/propan-2-ol mixtures at ca. 82°C provides the corresponding 4(1H)-quinolones (3).
Herbicidal N-aryl substituted azetidinones
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, (2008/06/13)
Disclosed are herbicidal compositions comprising an inert carrier and as an essential active ingredient in a quantity toxic to weeds a compound of the formula EQU1 wherein X is selected from the group consisting of alkyl, alkenyl, alkoxy, alkylthio, halogen, haloalkyl and nitro; and n is an integer from 0 to 5.
