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- W2768163612 abstract "Tetraphenylmethane-ethynylene-based shape-persistent dendrimers are a new class of nanoobjects with an intriguing 3D architecture. We report an efficient divergent strategy for their synthesis based on the Sonogashira Pd-catalyzed coupling of terminal alkynes with aryl iodides. As repeat unit, we prepared a tetraphenylmethane derivative bearing a terminal alkyne and three triazene moieties. Coupling of this building block to tetrakis(p-iodophenyl)methane afforded, after triazene activation, a dodecaiodo-terminated first generation dendrimer, which was transformed by another Sonogashira coupling into a methoxy-terminated second generation dendrimer with persistent globular shape and well-defined cavities. This work also unveils new aspects of triazene chemistry, i.e., the unprecedented efficient generation of an azo compound by mixing of a triazene with phenol." @default.
- W2768163612 created "2017-12-04" @default.
- W2768163612 creator A5022063672 @default.
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- W2768163612 date "2017-11-22" @default.
- W2768163612 modified "2023-09-29" @default.
- W2768163612 title "Divergent Synthesis of Porous Tetraphenylmethane Dendrimers" @default.
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- W2768163612 doi "https://doi.org/10.1021/acs.joc.7b02302" @default.
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