A palladium-catalyzed regioselective decarboxylative direct C-H arylation of boron dipyrromethenes (BODIPYs) at the 2,6-positions has been developed as a late-stage approach to rapidly assemble a diversity-oriented BODIPY library. With the complement of this protocol, the direct C-H arylation of BODIPYs becomes regiocontrollable at α- and β-positions. A new type of indole-fused BODIPY exhibiting bright red/NIR fluorescence with a large molar extinction coefficient (145,500 M(-1) cm(-1)) and a high quantum yield (71%) has been synthesized for the first time.
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| http://dx.doi.org/10.1021/ol502883x | DOI Listing |
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