Synthesis of pillar[7]arene |
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| Authors: | Yu Chena Hong Qi Taoa Yu Hui Koua Herbert Meierb Jian Long Fua De Rong Caoa a |
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| Affiliation: | School of Chemistry and Chemical Engineering, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510641, China ; Institute of Organic Chemistry, University of Mainz, Duesbergweg 10-14,55099 Mainz, Germany |
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| Abstract: | The first synthesis of pillar[7]arene is reported with two methods.Method A:the FeCl3-catalyzed condensation reaction of 1,4- dimethoxybenzene（1） with paraformaldehyde in CHCl3 gave dimethoxypillar[7]arene（3）.Method B:the p-toluenesulfonic acid catalyzed condensation reaction of 2,5-bis（benzyloxymethyl）-1,4-dimethoxybenzene（2） in CH2Cl2 gave compound 3.Demethylation of 3 with BBr3 gave pillar[7]arene（4）.The pillar[7]arene might be a perspective macrocyclic host in host-guest chemistry. |
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| Keywords: | Pillar[n]arenes Pillar[7]arene Host-guest chemistry Condensation reaction Iron(Ⅲ) chloride |
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