126504-88-9Relevant articles and documents
(2,5)Pyrimidinophanes: Synthesis and Molecular Structure
Eiermann, Uwe,Krieger, Claus,Neugebauer, Franz A.
, p. 1885 - 1889 (2007/10/02)
The title compounds 1 and 2 are synthesized by photolytic sulfur extrusion from 2,11-dithia(2,5)pyrimidinophane 17.The molecular structures of 1 and 2 are determined by X-ray structure analysis and are discussed with regard to the steric strain in these molecules.Thermolysis of - or -trimethylammonium hydroxide (10 or 11) does not generate 1 and 2. α-Chlorination of 2,5-dimethylpyrimidine (3) with N-chlorosuccinimide provides the required precursors 4 - 6.
