Synthesis and self-assembly of novel calix[4]arenocrowns: formation of calix[4]areno[2]catenanes
摘要:
A series of novel calix[4]arenocrowns la-c were efficiently synthesized by a one-pot reaction of calix[4]monohydroquinone diacetate 5 with ditosylate 6 and its analogues in the presence of sodium hydroxide. It was found that the calix[4]arenocrowns could form stable pseudorotaxane-type complexes 2a-c with paraquat, and further self-assemble into calix[4]areno[2]catenanes 3a-C with dicationic salt 8 and p-bis(bromomethyl)benzene. (c) 2006 Elsevier Ltd. All rights reserved.
Synthesis and self-assembly of novel calix[4]arenocrowns: formation of calix[4]areno[2]catenanes
摘要:
A series of novel calix[4]arenocrowns la-c were efficiently synthesized by a one-pot reaction of calix[4]monohydroquinone diacetate 5 with ditosylate 6 and its analogues in the presence of sodium hydroxide. It was found that the calix[4]arenocrowns could form stable pseudorotaxane-type complexes 2a-c with paraquat, and further self-assemble into calix[4]areno[2]catenanes 3a-C with dicationic salt 8 and p-bis(bromomethyl)benzene. (c) 2006 Elsevier Ltd. All rights reserved.
A series of novel calix[4]arenocrowns la-c were efficiently synthesized by a one-pot reaction of calix[4]monohydroquinone diacetate 5 with ditosylate 6 and its analogues in the presence of sodium hydroxide. It was found that the calix[4]arenocrowns could form stable pseudorotaxane-type complexes 2a-c with paraquat, and further self-assemble into calix[4]areno[2]catenanes 3a-C with dicationic salt 8 and p-bis(bromomethyl)benzene. (c) 2006 Elsevier Ltd. All rights reserved.