Synthesis of Sulfonamides and 1,3-Oxazine-2,4-diones from Arylsulfonyl Isocyanates and Diketene
作者:Abdolali Alizadeh、Nasrin Zohreh、Long-Guan Zhu
DOI:10.1055/s-2008-1067115
日期:——
de and 3-(arylsulfonyl)-6-methyl-2 H-1,3-oxazine-2,4(3 H)-dione derivatives is described. This involves the reaction of arylsulfonyl isocyanates and diketene in the presence of N-heteroaromatic compounds such as 1,3,5-triazine, 1-methyl-1 H-imidazole, or pyridine as catalyst. The reactive 1:1 zwitterions obtained from the addition of N-heteroaromatic compound to arylsulfonyl isocyanates were trapped
官能化 N 1 -[(2,6-dimethyl-4-oxo-4 H-pyran-3-yl)carbonyl]-1-arylsulfonamide 和 3-(arylsulfonyl)-6-methyl-2 H-1 的有效途径描述了 ,3-oxazine-2,4(3 H)-dione 衍生物。这涉及芳基磺酰基异氰酸酯和双烯酮在 N-杂芳族化合物(例如 1,3,5-三嗪、1-甲基-1 H-咪唑或吡啶作为催化剂)存在下的反应。通过将 N-杂芳族化合物添加到芳基磺酰基异氰酸酯中获得的反应性 1:1 两性离子被双烯酮捕获以产生官能化磺酰胺和 1,3-oxazine-2,4(3H)-dione 衍生物。