54308-01-9Relevant academic research and scientific papers
cis-/trans--Trithia- and trans--Hexathia-tris-?-homobenzenes
Kagabu, Shinzo,Kaiser, Clemens,Keller, Reinhold,Becker, Paul G.,Mueller, Klaus-Helmuth,et. al.
, p. 741 - 756 (2007/10/02)
Starting from the cis- and trans-benzene trioxides 2/7 the cis-/trans--Trithia-tris-?-homobenzenes 1/6 and the trans-dioxathia-/oxadithia analogs 19/21 are synthesized by regioselective epoxide opening reactions with appropriate S-nucleophiles.Under the influence of heat and light cis-trisulfide 1 quickly looses sulfur and does not undergo ?2+?2+?2>cycloreversion.Attempts to build up cis--tris-?-homobenzenes from 2 by threefold six-membered ring anellation, in the special case of 1,2-benzenedithiol as 1,4-dinucleophil, led preferably to the trans--hexathia-tris-?-homobenzene 44 (X-ray analysis) manifesting effective S-neighbouring group participation. cis-Trisulfide 1 is a poor tridentate ligand: only with Ni(ClO4)2 a 2:1 complex (presumably octahedral, 48) is formed.
