The invention provides a process for the preparation of a N-(haloheterocyclic-aminocarbonyl) aromatic sulfonamide of formula
(wherein
A is an optionally substituted homocyclic or heterocyclic aromatic group;
X is H; Cl; Br; C1-C2 alkyl; CF3; CH3O; methoxymethyl or -CH2CH2OCH3;
Y is Cl or Br; and
Z is CH, N, C-Cl or C-CH 3)
characterised in that an aromatic sulfonamide A-SO2NH2 (wherein A is as defined above) is contacted with an isocyanate of formula
(wherein X, Y and Z are as defined above). The resulting compounds may be further contacted with selected nucleophiles to yield further N-(substituted heterocyclic- aminocarbonyl) aromatic sulfonamides.
本发明提供了一种制备 N-(卤代环-
氨基羰基)芳香磺酰胺的工艺,其式为
其中
A 是任选取代的均环或杂环芳香基团;
X 是 H;Cl;Br;C1-C2 烷基;
CF3;
CH3O;甲氧基甲基或 -CH2CH2OCH3;
Y 是 Cl 或 Br;以及
Z 是 CH、N、C-Cl 或 C-CH 3)
其特征在于,芳香族磺酰胺 A-SO2NH2(其中 A 如上定义)与式 1 的
异氰酸酯接触
(其中 X、Y 和 Z 如上定义)。得到的化合物可进一步与选定的亲核物接触,得到更多的 N-(取代杂环-
氨基羰基)芳香族磺酰胺。