Reaction of N-Sulfinyltrifluoromethanesulfonamide CF3SO2N=S=O with Carbonyl Compounds
作者:B. A. Shainyan、L. L. Tolstikova
DOI:10.1007/s11178-005-0281-0
日期:2005.7
N-Sulfinyltrifluoromethanesulfonamide CF3SO2N=S=O reacts with salicylaldehyde, 2-furaldehyde, 2-thiophenecarbaldehyde, 3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde, and 2-phenyl-2H-1,2,3-triazole-4-carbaldehyde to afford the corresponding N-aryl(hetaryl)methylidenetrifluoromethanesulfonamides in high yields. Reactions of the latter with aniline give no adducts at the C=N bond but transamination products. The reaction of trifluoromethanesulfonamide with phenyl isocyanate led to formation of N,N′-diphenylurea instead of expected N-phenyl-N′-(trifluoromethylsulfonyl)urea.
N-亚磺酰基三氟甲基磺酰胺 CF3SO2N=S=O 与水杨醛、2-呋喃甲醛、2-噻吩甲醛、3-甲基-1-苯基-1H-吡唑-4-甲醛和 2-苯基-2H-1,2,3-三唑-4-甲醛反应,可以高产率得到相应的 N-芳基(庚基)亚甲基三氟甲基磺酰胺。后者与苯胺反应不会产生 C=N 键的加合物,但会产生反式产物。三氟甲基磺酰胺与异氰酸苯酯反应生成 N,N′-二苯基脲,而不是预期的 N-苯基-N′-(三氟甲基磺酰基)脲。