118486-94-5Relevant articles and documents
Poly(mono-, bi- or trifuran): Effect of oligomer chain length on the electropolymerization performances and polymer properties
Zhen, Shijie,Lu, Baoyang,Xu, Jingkun,Zhang, Shimin,Li, Yuzhen
, p. 14001 - 14012 (2014)
Most recently, oligo-/polyfurans have regained widely attention due to their unique properties and promising applications in organic electronics. Herein, to acquire a thorough fundamental understanding of the electrosynthesis and properties of polyfuran (PFu) from different initial oligomers, the synthesis, fluorescence, and electropolymerization performances of α-oligofurans, namely furan (Fu), bifuran (2Fu), trifuran (3Fu), were comprehensively reported and the effect of oligomer chain length on the structure and properties of the resulting PFu films were evaluated. The oligofurans introduced here revealed higher fluorescence efficiency (0.05 for Fu, 0.19 for 2Fu and 0.27 for 3Fu) than the corresponding oligothiophenes and oligoselenophenes. The onset oxidation potential of oligofurans decreased obviously (1.25 V for Fu, 0.8 V for 2Fu, and 0.7 V for 3Fu) with the chain length of the starting monomers increasing, thus leading to the electrodeposition of high quality free-standing PFu films with improved optoelectronic properties. Structure characterization and properties of the as-formed PFu from different initial oligomers, including FT-IR, UV-vis, surface morphology, fluorescence, electroactivity and stability, electrochromic properties, etc., were systematically investigated and comprehensively discussed.
Controllable Stereoselective Synthesis of (Z)- and (E)-Homoallylic Alcohols Using a Palladium-Catalyzed Three-Component Reaction
Horino, Yoshikazu,Sugata, Miki,Mutsuura, Itaru,Tomohara, Keisuke,Abe, Hitoshi
supporting information, p. 5968 - 5971 (2017/11/10)
Diastereoselective synthesis of (Z)- and (E)-homoallylic alcohols using a Pd-catalyzed three-component reaction of 3-(pinacolatoboryl)allyl benzoates, aldehydes, and aryl stannanes was developed, which provides an alternative method for the allylboration of aldehydes using α, γ-diaryl-substituted allylboronates. Both sets of reaction conditions enable access to either (Z)- or (E)-homoallylic alcohols with good to high alkene stereocontrol. The present method showed good functional group compatibility and generality. Efficient chirality transfer reactions to afford enantioenriched (Z)- and (E)-homoallylic alcohols were also achieved.
Polyheterocyclic compounds
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, (2008/06/13)
The present invention relates to a group of polyheterocyclic compounds covered by the following formula: STR1 wherein each of X1, X2, X3, and X4, independently, is O, S, NH, or N(C1-6 alkyl), but one of them must be O, NH, or N(C1-6 alkyl); each of R1, R2, R5, and R6, independently, is H or a substituent (e.g., halogen, CN, NO2, or C1-4 haloalkyl), but at least one of them must be a substituent; each of R3 and R4, independently, is H, C1-6 alkyl, CHO, CH2 OH, or CH2 NH2 ; and each of m and n, independently, is 0 or 1.