The reaction of dinaphthofuran with lithium in anhydrous diethyl ether led to a solution of the corresponding C,O-dilithiated intermediate which, upon treatment with DMF at ?78 oC, afforded, after hydrolysis, 2'-hydroxy-1,1'-binaphthyl-2-carbaldehyde in a good yield. Then binaphthyl-bridged Schiff bases were prepared by the condensation of 2'-hydroxy-1,1'-binaphthyl-2-carbaldehyde with the corresponding aromatic amines.
WANG Bin LI Min-xiong XU Shan-sheng SONG Hai-bin WANG Bai-quan
η5-Pentamethylcyclopentadienyl-(η5-exo-tricyclo[5.2.1.02,6]deca-2,5,8-trien-6-yl) iron(3) was synthesized and characterized by 1H NMR, 13C NMR, MS, elemental analysis, IR, UV and X-ray diffraction analysis. Compound 3 was polymerized with ring-opening metathesis polymerization(ROMP) initiator (PCy3)2Cl2Ru=CHPh. 1H NMR and IR spectra revealed the presence of CH=CH units in the polymer and supported the ROMP mechanism. GPC analysis of the polymer showed that the weight-average molecular weights(Mw) was 5967, and the polydispersity index(PDI) was 1.16. The polymer was also investigated by UV and cyclic voltammetry.
ZHAO Xi LI Bin XU Shan-sheng SONG Hai-bin WANG Bai-quan
