Chemistry of Pyrones, Part 5: New Crown Ether and Podand Derivatives of 3,5-Bis(bromomethyl)-2,6-diphenyl-4H-pyran-4-one

doi:10.3390/60900721

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Molecules 2001, 6(9), 721-727; doi:10.3390/60900721

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Chemistry of Pyrones, Part 5: New Crown Ether and Podand Derivatives of 3,5-Bis(bromomethyl)-2,6-diphenyl-4H-pyran-4-one

Aziz Shahrisa * and Alireza Banaei

Department of Organic Chemistry, Faculty of Chemistry, Tabriz University, Tabriz 51664, Iran

* Author to whom correspondence should be addressed.

Received: 4 October 2000; in revised form: 3 August 2001 / Accepted: 14 August 2001 / Published: 31 August 2001

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Abstract: New podand and crown ether derivatives of 3,5-disubstituted 4H-pyran-4-one (8-11) were prepared by the nucleophilic substitution reaction of 3,5-bis(bromomethyl)-2,6-diphenyl-4H-pyran-4-one with o-nitrophenol, 8-hydroxyquinoline, 2-hydroxymethyl pyridine and triethyleneglycol, respectively. The yield of 3,5-bis[(2-formylphenoxy) methyl]-2,6-diphenyl-4H-pyran-4-one has been improved by modification of our previous method using NaOH instead of Et₃N.

Keywords: Crown ether; Podands; 4H-pyran-4-one; Open-chain crown; Nucleophilic substitution

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MDPI and ACS Style

Shahrisa, A.; Banaei, A. Chemistry of Pyrones, Part 5: New Crown Ether and Podand Derivatives of 3,5-Bis(bromomethyl)-2,6-diphenyl-4H-pyran-4-one. Molecules 2001, 6, 721-727.

AMA Style

Shahrisa A., Banaei A. Chemistry of Pyrones, Part 5: New Crown Ether and Podand Derivatives of 3,5-Bis(bromomethyl)-2,6-diphenyl-4H-pyran-4-one. Molecules. 2001; 6(9):721-727.

Chicago/Turabian Style

Shahrisa, Aziz; Banaei, Alireza. 2001. "Chemistry of Pyrones, Part 5: New Crown Ether and Podand Derivatives of 3,5-Bis(bromomethyl)-2,6-diphenyl-4H-pyran-4-one." Molecules 6, no. 9: 721-727.

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