13270-05-8Relevant articles and documents
Sulfides and Disulfides of s-Triazine: Potential Thermal Thiyl Radical Generators
H?hne, Carl-Christoph,Posern, Christian,B?hme, Uwe,Kroke, Edwin
, p. 13596 - 13606 (2018)
A series of aliphatic and aromatic thioethers and dithioethers of s-triazine were synthesised to study their thermal properties, in particular the thermally induced thiyl radical generation ability. Four symmetric s-triazine sulfides of the type (RS)3C3N3, namely 2,4,6-tris(phenylthio)- (1), 2,4,6-tris(para-tolylthio)- (3), 2,4,6-tris(ethylthio)- (5) and 2,4,6-tris(tert-butylthio)-1,3,5-triazine (7), as well as four symmetric s-triazine disulfides of the type (RSS)3C3N3, namely 2,4,6-tris(phenyldithio)- (2), 2,4,6-tris(para-tolyldithio)- (4), 2,4,6-tris(ethyldithio)- (6) and 2,4,6-tris(tert-butyldithio)-1,3,5-triazine (8) were synthesised. All compounds were comprehensively characterised by 1H and 13C NMR, infrared and Raman spectroscopy as well as elemental analyses. Single-crystal X-ray diffraction analyses of 1, 2 and 5 are discussed. The thermal behaviour was studied by thermogravimetric analyses coupled with mass spectrometry (TGA-MS) and quantum chemical calculations. Limiting oxygen index (LOI) flammability tests showed that the disulfides are the most promising radical generators, and are most likely suitable flame retardants for selected polymers.
Palladium Nanoparticles Immobilized on Nanosilica Triazine Dendritic Polymer (Pd np -nSTDP) as Catalyst in the Synthesis of Mono-, Di-, and Trisulfides through C-S Cross-Coupling Reactions
Isfahani, Amir Landarani,Mohammadpoor-Baltork, Iraj,Mirkhani, Valiollah,Moghadam, Majid,Khosropour, Ahmad Reza,Tangestaninejad, Shahram,Nasr-Esfahani, Mahboobeh,Rudbari, Hadi Amiri
supporting information, p. 645 - 652 (2014/04/03)
A wide variety of diaryl sulfides has been synthesized in excellent yields via C-S cross-couplings of aryl/heteroaryl halides with aromatic/heteroaromatic thiols in the presence of palladium nanoparticles immobilized on nanosilica triazine dendritic polymer (Pd np -nSTDP) as a reusable catalyst under thermal conditions and microwave irradiation. Pd np -nSTDP also showed excellent catalytic activity for the preparation of a series of di- and trisulfides with benzene, pyridine, pyrimidine, and/or 1,3,5-triazine as the central cores by one-pot multi C-S cross-coupling reactions. Georg Thieme Verlag Stuttgart. New York.