226712-71-6Relevant articles and documents
Method of photo-induced catalytic selective synthesis of Z- and E-olefins
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Paragraph 0043, (2019/10/01)
The invention discloses a method of photo-induced catalytic selective synthesis of Z- and E-olefins. According to the method, a disubstituted acetylene compound is used as a starting raw material, a cheap acid is used as a hydrogen source, a phosphine is
Method for catalytic-selectively synthesizing Z- and E-alkene through alcohol supply hydrogen iridium controlled by ligand
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Paragraph 0081-0084, (2019/01/23)
The invention discloses a method for catalytic-selectively synthesizing Z- and E-alkene through alcohol supply hydrogen iridium controlled by a ligand. The method comprises the following steps: usinga disubstituted acetylene compound as a starting raw mat
Synthesis of and ferromagnetic coupling in poly(phenylenevinylene)s bearing built-in t-butyl nitroxides
Nishide, Hiroyuki,Kaneko, Takashi,Toriu, Shuichi,Kuzumaki, Yoshihiro,Tsuchida, Eishun
, p. 499 - 508 (2007/10/03)
Poly[[2- or 4-[N-t-butyl-N-(triethylsiloxy- or t-butyldimethylsiloxy)amino]-1,4- or 1,2-phenylene]vinylene] was synthesized by polymerizing 4- or 2-bromo-2- or 4-[N-t-butyl-N-(triethylsiloxy- or t-butyldimethylsiloxy)amino]styrene with a palladium catalyst, respectively. They were deprotected and chemically oxidized to yield poly(1,4- or 1,2-phenylenevinylene)s bearing a 2- or 4-substituted built-in nitroxide radical. The polyradicals were chemically stable, and their spin concentration was increased to 0.8 spin/unit. A SQUID measurement which included the corresponding diradicals and triradicals indicated that a partial, but strong, intramolecular ferromagnetic coupling was established through the conjugated backbone, despite a spin defect in the side radical moiety, for the poly(1,2- phenylenevinylene) bearing 4-substituted built-in nitroxide radical.