Novel Electron Acceptors Bearing a Heteroquinonoid System III: 2, 5-Bis (dicyanomethylene)-2, 5-dihydrofuran and Its Conjugated Homologues as Novel Oxygen- …
H Ishida, K Yui, Y Aso, T Otsubo, F Ogura
文献索引:Ishida, Hideki; Yui, Koji; Aso, Yoshio; Otsubo, Tetsuo; Ogura, Fumio Bulletin of the Chemical Society of Japan, 1990 , vol. 63, # 10 p. 2828 - 2835
2, 5-Bis (dicyanomethylene)-2, 5-dihydrofuran with a 2, 5-furanoquinonoid skeleton and its extensive conjugated homologues, 5, 5′-bis (dicyanomethylene)-5, 5′-dihydro-Δ 2, 2′- bifuran (8a), and 5, 5 ″-bis (dicyanomethylene)-5, 5 ″-dihydro-Δ 2, 2′: 5′, 2 ″-terfuran (12a), have been prepared as a new type of oxygen-containing electron acceptors. In the synthetic course of the tetrabromo derivative of 12a, 3′, 4-dibromo-5-(3, 5-dibromo-2- ...