Iterative Synthesis of 1,3,5-Polyphenylene Dendrons via C−H Activation
作者:Aaron D. Finke、Jeffrey S. Moore
DOI:10.1021/ol8019605
日期:2008.11.6
An iterative synthesis of 1,3,5-polyphenylene dendrons via C-H activation/Suzuki-Miyauracoupling up to a third generation dendron is described. C-H bonds at the focal points of the dendrons are selectively borylated via iridium-catalyzed borylation, eliminating the need for reactive protecting groups. Sequential additions of low catalyst loadings efficiently borylate higher-generation dendrons, whereas