Kearney, Timothy; Joule, John A., Heterocycles, 1992, vol. 33, # 2, p. 757 - 762
作者:Kearney, Timothy、Joule, John A.
DOI:——
日期:——
1-Arylamino-1-methylthio-2-nitroethene in superacids: NMR study and reactivity of the formed hydroxynitrilium lons
作者:Jean-Marie Coustard
DOI:10.1016/0040-4020(96)00485-1
日期:1996.7
temperature in triflic acid, 1-arylamino-1-methylthio-2-nitroethylenes give firstly C, O-protonated species then a conjugated dication with aryliminium and hydroxynitrilium sites. The last one was trapped in situ with aromatic or quenched with MeOH or MeSH to form aryliminohydroxyimino derivatives. Intramolecular reaction occurs when temperature rises. Effect of aromatic ring substituant, acidity (HF-SbF5 5:1)
Synthesis of Isatin 3-Oximes from 2-Nitroacetanilides
作者:Timothy Kearney、Philip A. Harris、Arthur Jackson、John A. Joule
DOI:10.1055/s-1992-26223
日期:——
2-Nitroacetanilides, prepared by alkaline hydrolysis of 1-arylamino-1-methylthio-2-nitroethenes, are converted into isatin (1H-indole-2,3-dione) 3-oximes by treatment with concentrated sulfuric acid or trifluoromethanesulfonic acid at room temperature.