A viable method to obtain calix[8]arenes selectively functionalized at the upper rim of 1,5-aromatic rings is reported. The procedure relies on protected, readily accessible 1,5-xylylene-bridged derivatives, which are easily deprotected by hydrogenolysis. The method allowed the synthesis of the first examples of calix[8]arenes partially substituted with p-nitro, p-amino, quinone and hydroquinone functionalities
Titolo: | Convenient regioselective functionalization at the upper-rim of p-tert-butylcalix[8]arene through a protection-deprotection procedure |
Autori: | |
Data di pubblicazione: | 2002 |
Rivista: | |
Abstract: | A viable method to obtain calix[8]arenes selectively functionalized at the upper rim of 1,5-aromatic rings is reported. The procedure relies on protected, readily accessible 1,5-xylylene-bridged derivatives, which are easily deprotected by hydrogenolysis. The method allowed the synthesis of the first examples of calix[8]arenes partially substituted with p-nitro, p-amino, quinone and hydroquinone functionalities |
Handle: | http://hdl.handle.net/11386/1058724 |
Appare nelle tipologie: | 1.1.2 Articolo su rivista con ISSN |
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