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.
Preparation of arylthiocyanates by simply mixing aromatic sulfinates with cyanotrimethylsilane (TMSCN) was achieved in good to moderate yields. The thiocyanates were also obtained directly from sulfonyl chloride using TMSCN, sodium sulfite, and potassium carbonate.