作者:Zhengguo Zhu、Jeffrey S. Moore
DOI:10.1021/jo991167h
日期:2000.1.1
A series of 9-phenylcarbazole ethynylene monodenrons have been prepared by palladium-catalyzed coupling reactions creating well-organized arrays of redox centers. The tert-butyl groups attached to the 3,6-positions of peripheral 9-phenylcarbazole monomers provide adequate solubility to a limited degree. Trimer and 7-mer monodendrons were prepared using a monomer with 3, 3-diethyltriazene at its focal
已经通过钯催化的偶联反应制备了一系列9-苯基咔唑乙炔基单denrons,从而形成了组织良好的氧化还原中心阵列。连接至外围9-苯基咔唑单体的3,6-位的叔丁基可在有限的程度上提供足够的溶解度。使用在其焦点处带有3,3-二乙基三氮烯的单体制备三聚体和7-聚一聚体。然而,为了促进纯化,合成15聚体单枝二烯需要在其焦点处带有3-羟基-3-甲基-丁-1-炔基的单体作为末端乙炔官能团的掩蔽基团。尽管溶解度受到限制,但是发现高世代单树枝容易溶于高极化率的溶剂二硫化碳。