Efficient synthesis and characterisation of a series of aryl benzyl NH-sulfoximines are described. While N-protected versions of aryl benzyl sulfoximines have been previously described, reports of their de-protection are very limited, presumably due to lability under the typically harsh deprotection conditions which can be employed with the less reactive aryl alkyl derivatives. Use of N-cyanosulfoximines as key intermediates overcomes these difficulties leading to an effective synthetic route to these compounds. (C) 2009 Elsevier Ltd. All rights reserved.
Rhodium-Catalyzed <i>ortho</i>
-Amidations in the Preparation of Thiadiazine 1-Oxides
作者:Ying Cheng、Wanrong Dong、Han Wang、Carsten Bolm
DOI:10.1002/chem.201602550
日期:2016.7.25
Rhodium‐catalyzed ortho‐amidations of sulfoximines lead to key intermediates for the preparation of thiadiazine 1‐oxides. Following a straightforward protocol, a variety of synthetically valuable compounds can be obtained, thus circumventing common multistep approaches towards potentially bioactive products.