1,2,3,4-Tetraethynylbenzene as a Template for Cobalt-Catalyzed Alkyne Cocyclizations: Synthesis of 2,3,8,9-Tetrakis(trimethylsilyl) Angular [3]Phenylene and Bent [5]Phenylene (Benzo[1′′,2′′:3,4;3′′,4′′:3′,4′]dicyclobuta[1,2-<i>b</i>:1′,2′-<i>b</i>′]bisbiphenylene)
作者:K. Vollhardt、Debra Mohler、Sriram Kumaraswamy、Amnon Stanger
DOI:10.1055/s-2006-947329
日期:2006.11
An approach to the synthesis of bent phenylenes is described, which features 1,2,3,4-tetraethynylbenzene as starting material. Application of this synthon in CpCo-catalyzed alkyne cocyclizations allows the total synthesis of bent [5]phenylene, the seventh isomer of the family of twelve [5]phenylenes to be isolated.
描述了一种合成弯曲亚苯基的方法,它以 1,2,3,4-四乙炔苯为起始原料。该合成子在 CpCo 催化的炔共环化中的应用允许全合成弯曲 [5] 亚苯基,这是要分离的十二 [5] 亚苯基家族的第七个异构体。