Temperature‐Controlled Chemoselective Synthesis of Thiosulfonates and Thiocyanates: Novel Reactivity of KXCN (X=S, Se) towards Organosulfonyl Chlorides
作者:Pratibha Kalaramna、Avijit Goswami
DOI:10.1002/ejoc.202101031
日期:2021.10.14
Thiosulfonates and thiocyanates can be prepared chemoselectively by treating organosulfonyl chlorides with potassium thio-/selenocyanate. The protocol furnished the products in good yields of up to 95 %. For the first time, we are reporting a protocol to synthesize thiosulfonate and thiocyanate selectively by single reaction strategy.
THIOLSULPHONATES are a group of organic sulphur compounds known since 1839 (ref. 1) but their antibacterial and antifungal properties were only discovered in 1949 (ref. 2). While investigating the antimicrobial mechanism of thiolsulphonates we prepared a new series of substituted thiolsulphonates, the trifluoromethyl thiolsulphonates, RSO2SCF3, by reaction of zinc alkyl (or aryl) sulphinates with
作者:Miraghaee, Seyedesahar、Umemoto, Teruo、Hammond, Gerald B.
DOI:10.1021/acs.orglett.4c02293
日期:——
one-step reaction from commercial materials, is a shelf-stable and powerful electrophilic trifluoromethylthiolating (CF3S) reagent with wide reactivity profile. Activation of 1 with triflic acid (TfOH) yields two reactive species A and B, depending on the molar ratios of TfOH/1. B showed unprecedented high reactivity, making possible the trifluoromethylthiolation of electron-deficient aromatic systems. In