S-Trifluoromethyl sulfoximines and S-trifluoromethyl sulfilimino iminiums are important reagents for the electrophilic or radical late-stage introduction of the CF3 group. We disclose in this article a reappraisal of our previous methodologies and their adaptation to a large scale. More than 30 g of the key sulfoximine 4 and 40 g of S-trifluoromethyl sulfilimino iminium 5 are prepared without purification
S-三
氟甲基亚砜
亚胺和S-三
氟甲基亚砜
亚胺基
亚胺是用于CF 3基团的亲电或自由基后期引入的重要试剂。我们在本文中披露了对我们以前的方法学及其大规模应用的重新评估。无需纯化即可制备超过30 g的关键亚砜
亚胺4和40 g S-三
氟甲基亚磺
酰亚胺基
亚胺5。为了确保过程安全,已对粗混合物和分离出的化合物进行了
DSC测量。合成的成本也进行了详细讨论。