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Dendritic Encapsulation – “Postsynthetic” Functionalizations of a Single Benzophenone Shielded by Shape‐Persistent Polyphenylene Dendrons
Author(s) -
Bernhardt Stefan,
Baumgarten Martin,
Müllen Klaus
Publication year - 2006
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.200500773
Subject(s) - benzophenone , dendrimer , chemistry , shielded cable , polymer chemistry , electromagnetic shielding , chemical engineering , nanotechnology , combinatorial chemistry , composite material , materials science , electrical engineering , engineering
First‐ and second‐generation polyphenylene dendrimers were synthesized starting from benzophenone as core. Variation of the size and the density of the dendrimer shell resulted in different isolation of the cores. To investigate the effect of shielding upon the reactivity of the core, chemical functionalizations as well as the alkali‐metal reduction of the encapsulated benzophenone core were performed. The herein presented synthetic concept opens the way to spatially well‐defined spherical nanoparticles bearing a single isolated function in the center. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)