88734-24-1Relevant articles and documents
Dication Ethers and Related Compounds, 1. On Dication Chalkogenides and Dichalkogenides
Maas, Gerhard,Singer, Berndt
, p. 3659 - 3674 (2007/10/02)
Reaction of N,N-, N,S-, S,S-, and O,O-substituted thiones 4a-f or selones 6a-c with trifluoromethanesulfonic anhydride leads to dication disulfides 5a-f or diselenides 7a-c, resp.No dication sulfides or selenides are obtained whose formation would parallel the reactivity of the corresponding urea derivatives.This class of dications (14, 15) is, on the other hand, accessible by the reaction of dication ethers 13 with thiones 4 or selones 6. 1H and 13C NMR data of the dication dichalkogenides and chalkogenides are compared with each other.