Addition d’aminoalcools hautement fluorés sur les isocyanates d’alcoxy et d’aroxysulfonyle
摘要:
The action of F-alkylated (alkylamino)ethanols on alkoxy- and aroxy-sulfonyl isocyanates allowed the preparation of the corresponding carbamates. The reaction occurred rapidly with good yields. (C) 2002 Published by Elsevier Science B.V.
Addition of various unsaturated alcohols to sulfonylisocyanate derivatives: Synthesis of new unsaturated N-sulfonyl carbamates
作者:Ahlem Radhouani、Mohamed Beji
DOI:10.1080/10426507.2015.1072186
日期:2016.5.3
GRAPHICAL ABSTRACT Abstract The synthesis of new unsaturated N-sulfonylcarbamates by the addition of unsaturated alcohols to aroxy(alkoxy)sulfonylisocyanates is reported. The reaction is carried out at room temperature in the presence or absence of solvent, depending on the nature of the starting alcohol. The products were obtained in good yields and characterized with IR, 1H, and 13C NMR and HRMS
Reaction of Acids and Diacids with Aroxy(alcoxy)sulfonyl Isocyanates: Synthesis of <i>N</i>-Acylsulfamates, Disulfamates, and <i>N</i>,<i>N</i>′-Disulfonylureas
作者:Hassen Sbihi、Mohamed Beji、Ahmed Baklouti
DOI:10.1080/00397910802219114
日期:2008.7.24
Abstract Reaction of carboxylic acids with aroxy(alcoxy)sulfonylisocyanates allowed the preparation of the corresponding aroxy(alcoxy) N-acylsulfamates. With succinic diacid, the same reaction yielded the corresponding N, N′-diacylsulfamates, whereas the N, N′-disulfonylureas were obtained by reaction of maleic or fumaric diacids.
摘要 羧酸与芳氧基(烷氧基)磺酰基异氰酸酯反应可以制备相应的芳氧基(烷氧基)N-酰基氨基磺酸盐。对于琥珀二酸,同样的反应产生相应的 N, N'-二酰基氨基磺酸盐,而 N, N'-二磺酰脲是通过马来酸或富马酸二酸的反应获得的。
2,2,2-Trichloroethylsulphonyl, 2,2,2-trichloroethoxysulphonyl, and trifluoroacetyl isocyanates in β-lactam synthesis
作者:Anthony G. M. Barrett、Ashley Fenwick、Michael J. Betts
DOI:10.1039/c39830000299
日期:——
Condensation of the title isocyanates with olefins and subsequent dissolving-metal reduction (sulphonyl derivatives) or chromatography on Florisil (trifluoroacetyl derivatives) gave several N-unsubstituted β-lactams including two 8-aza-2-oxabicyclo[4.2.0]octan-7-one derivatives.
Synthesis of F-alkyl bis(N-aroxy or alkoxysulfonyl)dicarbamates
作者:H. Sbihi、M. Beji、A. Baklouti
DOI:10.1016/s0022-1139(00)00282-7
日期:2000.7
The synthesis of F-alkyl bis(N-aroxy or alkoxysulfonyl)dicarbamates has been achieved at room temperature by the action of F-alkyldiols on aroxy or alkoxysulfonyl isocyanates.
Carbamate mediated functionalization of unsaturated alcohols II. Regio- and stereo-selective synthesis of 1,3-syn and 1,2-anti amino alcohol derivatives via iodocarbamation
A regio- and stereo-selective introduction of nitrogen functions to double bonds of acyclic, allylic and homoallylic alcohols was achieved via iodocyclization of the corresponding N-sulfonylated O-carbamates.