Versuche zur Synthese von [2.2]??und [2.3] Cyclopentadienophanen

…, P Bönzli, B Stofer, M Neuenschwander

文献索引：Fischer, Marcel; Boenzli, Peter; Stofer, Brigitte; Neuenschwander, Markus Helvetica Chimica Acta, 1999 , vol. 82, # 9 p. 1509 - 1520

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被引用次数: 6

摘要

Abstract Synthetic Attempts towards [2.2]-and [2.3] Cyclopentadienophanes. The first [2.2] Cyclopentadienophane (= 2, 2, 3, 3, 8, 8, 9, 9-octamethyltricyclo [8.2. 1.1 4, 7] tetradecatetraene; 1b) has been synthesized (Scheme 5) by reductive coupling of 6, 6- dimethylfulvene 3 [RIGHTWARDS ARROW] 5 (50%) followed by base-induced twofold condensation of 1, 2-di (cyclopentadienyl)-1, 2-dimethylbutane 5 with acetone to give ...