The oxidative polymerization of aryl sulfoxides provides a novel polysulfo-nium compound, poly(methylsulfonio-1,4-phenylenethio-1,4-phenylene cation) in quantita-tive yield. The polymerization proceeds efficiently in ...The oxidative polymerization of aryl sulfoxides provides a novel polysulfo-nium compound, poly(methylsulfonio-1,4-phenylenethio-1,4-phenylene cation) in quantita-tive yield. The polymerization proceeds efficiently in an acidic solution under atmosphericconditions. Oxygen, chemical and electrochemical oxidations are available. Vanadyl acety-lacetonate and cerium ammonium nitrate act as an effective catalyst for the oxygen ox-idative polymerization. The polymerization mechanism involves multielectron oxidation ofthe sulfides followed by successive electrophilic substitution. The resulting polyarylenesul-fonium cations are useful as a soluble precursor for the synthesis of high molecular weight(M_w>10~5) poly(thio arylne)s.展开更多
In this paper,4,4’-dichlorophenyliodonium hexafluorophosphate was synthesized through 4 step reactions.The target product was novel cationic photoinitiator.The structure of the compound was identified by UV,IR,（）1H...In this paper,4,4’-dichlorophenyliodonium hexafluorophosphate was synthesized through 4 step reactions.The target product was novel cationic photoinitiator.The structure of the compound was identified by UV,IR,（）1H-NMR,and MS.The optimal operation conditions were determined through orthogonal layout expriment.4,4’-Dichlorophenyliodonium hexafluorophosphate 4.95g（10mmol）,diphenyl sulfide 10ml（6mmol）and catalyst 3×10-4mol were reacted at 120℃ for 3 h,and the yield was 87.9%.展开更多
基金This work was partially supported by a Grant-in-Aid for Research Fellow of the Japan Society for the Promotion of Science(No.085410)and International Scientific Research(Joint Research No.08044174)from the Ministry of Education,Science,Sports and Culture
文摘The oxidative polymerization of aryl sulfoxides provides a novel polysulfo-nium compound, poly(methylsulfonio-1,4-phenylenethio-1,4-phenylene cation) in quantita-tive yield. The polymerization proceeds efficiently in an acidic solution under atmosphericconditions. Oxygen, chemical and electrochemical oxidations are available. Vanadyl acety-lacetonate and cerium ammonium nitrate act as an effective catalyst for the oxygen ox-idative polymerization. The polymerization mechanism involves multielectron oxidation ofthe sulfides followed by successive electrophilic substitution. The resulting polyarylenesul-fonium cations are useful as a soluble precursor for the synthesis of high molecular weight(M_w>10~5) poly(thio arylne)s.
文摘In this paper,4,4’-dichlorophenyliodonium hexafluorophosphate was synthesized through 4 step reactions.The target product was novel cationic photoinitiator.The structure of the compound was identified by UV,IR,（）1H-NMR,and MS.The optimal operation conditions were determined through orthogonal layout expriment.4,4’-Dichlorophenyliodonium hexafluorophosphate 4.95g（10mmol）,diphenyl sulfide 10ml（6mmol）and catalyst 3×10-4mol were reacted at 120℃ for 3 h,and the yield was 87.9%.
