Complexation of Linear Aliphatic Ester, Aldehyde and Ketone Guests by Per-ethylated Pillar[5]arene

The complexation of four neutral guest molecules containing carbon‐oxygen double bonds, i.e., 1,6‐diacetoxyhexane (1), dimethyl hexanedioate (2), hexanal (3), and 2‐hexanone (4), by per‐ethylated pillar[5]arene is reported. These guests show remarkably different binding affinities. For example, este...

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Bibliographic Details
Published in:Chinese journal of chemistry 2015-03, Vol.33 (3), p.335-338
Main Authors: Lou, Xiaobing, Chen, Huanqing, Jia, Xueshun, Li, Chunju
Format: Article
Language:English
Subjects:
aldehyde
ester
ketone
molecular recognition
pillararene
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Summary:The complexation of four neutral guest molecules containing carbon‐oxygen double bonds, i.e., 1,6‐diacetoxyhexane (1), dimethyl hexanedioate (2), hexanal (3), and 2‐hexanone (4), by per‐ethylated pillar[5]arene is reported. These guests show remarkably different binding affinities. For example, ester 1 could be fully engulfed by the host cavity to form a [2]pseudorotaxane‐type inclusion complex, while for 2, no obvious host‐guest interaction was observed. The complexation of four neutral guest molecules containing carbon‐oxygen double bonds, i.e., 1,6‐diacetoxyhexane (1), dimethyl hexanedioate (2), hexanal (3), and 2‐hexanone (4), by per‐ethylated pillar[5]arene is reported. These guests show remarkably different binding affinities. For example, ester 1 could be fully engulfed by the host cavity to form a [2]pseudorotaxane‐type inclusion complex, while for 2, no obvious host‐guest interaction was observed.
ISSN:1001-604X
1614-7065
DOI:10.1002/cjoc.201400889