The synthesis of a new type of selena aza crown ether 6 (4 nitrobenzyl) 1,4,7,10 selenatriazacyclododecane (L) derivated from phenylalanine , and its platinum(Ⅱ) complex was described. The catalytic activity of...The synthesis of a new type of selena aza crown ether 6 (4 nitrobenzyl) 1,4,7,10 selenatriazacyclododecane (L) derivated from phenylalanine , and its platinum(Ⅱ) complex was described. The catalytic activity of this complex for the hydrosilylation of olefins by triethoxysilane was investigated.展开更多
Two Crown ether benzotellurastyryl cyanines and three crown ether benzotelluramerocyanines are synthesized via the key intermediate 3 methyl 5,6(15 crown 5) 2(β acetanilide)vinyl benzotellurazolium iodide.The ...Two Crown ether benzotellurastyryl cyanines and three crown ether benzotelluramerocyanines are synthesized via the key intermediate 3 methyl 5,6(15 crown 5) 2(β acetanilide)vinyl benzotellurazolium iodide.The reactive conditions are discussed.The influence of alkali( earth)metal ions on the visible absorption spectra of these two types of crown ether cyanines are also studied.展开更多
Ebselen was selected as the lead compound and a series of derivatives of benzisoselenazolone was designed and synthesized with pharmacological interest. Under ether water NaHCO 3 reaction system, 2 chloroselenoben...Ebselen was selected as the lead compound and a series of derivatives of benzisoselenazolone was designed and synthesized with pharmacological interest. Under ether water NaHCO 3 reaction system, 2 chloroselenobenzoyl chloride was treated with a series of sulfanilamide and ten Ebselen derivatives with SO 2NHR group attached to the p position of 2 phenyl moiety were prepared in good yields. All these new conpounds were characterized by 1H NMR, IR, UV spectra and elemental analysis.展开更多
文摘The synthesis of a new type of selena aza crown ether 6 (4 nitrobenzyl) 1,4,7,10 selenatriazacyclododecane (L) derivated from phenylalanine , and its platinum(Ⅱ) complex was described. The catalytic activity of this complex for the hydrosilylation of olefins by triethoxysilane was investigated.
文摘Two Crown ether benzotellurastyryl cyanines and three crown ether benzotelluramerocyanines are synthesized via the key intermediate 3 methyl 5,6(15 crown 5) 2(β acetanilide)vinyl benzotellurazolium iodide.The reactive conditions are discussed.The influence of alkali( earth)metal ions on the visible absorption spectra of these two types of crown ether cyanines are also studied.
文摘Ebselen was selected as the lead compound and a series of derivatives of benzisoselenazolone was designed and synthesized with pharmacological interest. Under ether water NaHCO 3 reaction system, 2 chloroselenobenzoyl chloride was treated with a series of sulfanilamide and ten Ebselen derivatives with SO 2NHR group attached to the p position of 2 phenyl moiety were prepared in good yields. All these new conpounds were characterized by 1H NMR, IR, UV spectra and elemental analysis.
