Cation binding properties of a novel 1,3-alternate calix[4]biscrown. Formation of 1:1 and 1:2 complexes and unique cation tunneling across a calix[4]arene cavity

Kwang Nak Koh; Koji Araki; Seiji Shinkai; Zouhair Asfari; Jacques Vicens

doi:10.1016/0040-4039(95)01212-Z

Cation binding properties of a novel 1,3-alternate calix[4]biscrown. Formation of 1:1 and 1:2 complexes and unique cation tunneling across a calix[4]arene cavity

Kwang Nak Koh
, Koji Araki
, Seiji Shinkai
, Zouhair Asfari
, Jacques Vicens

Research output: Contribution to journal › Article › peer-review

89 Citations (Scopus)

Abstract

A novel 1,3-alternate calix[4]biscrown was synthesized by the reaction of calix[4]arene and tetraethyleneglycol ditosylate in the presence of K₂ CO₃. It formed a 1:2 complex as well as a 1:1 complex with alkali metal and ammonium cations and the cation tunneling phenomenon across the calix[4]arene cavity was detectable with ¹H NMR spectroscopy even at room temperature.

Original language	English
Pages (from-to)	6095-6098
Number of pages	4
Journal	Tetrahedron Letters
Volume	36
Issue number	34
DOIs	https://doi.org/10.1016/0040-4039(95)01212-Z
Publication status	Published - Aug 21 1995
Externally published	Yes

All Science Journal Classification (ASJC) codes

Biochemistry
Drug Discovery
Organic Chemistry

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10.1016/0040-4039(95)01212-Z

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abstract = "A novel 1,3-alternate calix[4]biscrown was synthesized by the reaction of calix[4]arene and tetraethyleneglycol ditosylate in the presence of K2 CO3. It formed a 1:2 complex as well as a 1:1 complex with alkali metal and ammonium cations and the cation tunneling phenomenon across the calix[4]arene cavity was detectable with 1H NMR spectroscopy even at room temperature.",

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AU - Koh, Kwang Nak

AU - Araki, Koji

AU - Shinkai, Seiji

AU - Asfari, Zouhair

AU - Vicens, Jacques

PY - 1995/8/21

Y1 - 1995/8/21

N2 - A novel 1,3-alternate calix[4]biscrown was synthesized by the reaction of calix[4]arene and tetraethyleneglycol ditosylate in the presence of K2 CO3. It formed a 1:2 complex as well as a 1:1 complex with alkali metal and ammonium cations and the cation tunneling phenomenon across the calix[4]arene cavity was detectable with 1H NMR spectroscopy even at room temperature.

AB - A novel 1,3-alternate calix[4]biscrown was synthesized by the reaction of calix[4]arene and tetraethyleneglycol ditosylate in the presence of K2 CO3. It formed a 1:2 complex as well as a 1:1 complex with alkali metal and ammonium cations and the cation tunneling phenomenon across the calix[4]arene cavity was detectable with 1H NMR spectroscopy even at room temperature.

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UR - https://www.scopus.com/pages/publications/0029095593#tab=citedBy

U2 - 10.1016/0040-4039(95)01212-Z

DO - 10.1016/0040-4039(95)01212-Z

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JO - Tetrahedron Letters

JF - Tetrahedron Letters

IS - 34

ER -

Cation binding properties of a novel 1,3-alternate calix[4]biscrown. Formation of 1:1 and 1:2 complexes and unique cation tunneling across a calix[4]arene cavity

Abstract

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