The nucleophilic substitution route. A facile method for the fourfold functionalization of the methylene bridges of calix[4]arene

Ishay Columbus, Silvio E. Biali*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

The radical bromination of p-tert-butylcalixarene tetramethyl ether was reinvestigated and the product (2b) characterized by X-ray crystallography. The tetrabromo calixarene derivatives 2a or 2b react with alcohols (TFE, EtOH), azide, and 2-methylfuran under solvolytic conditions affording calixarene derivatives functionalized at the four bridges. The reaction with alcohols and the aromatic compound proceeds in stereoselective fashion and affords the rccc isomer of the tetrasubstituted product.

Original languageAmerican English
Pages (from-to)2927-2929
Number of pages3
JournalOrganic Letters
Volume9
Issue number15
DOIs
StatePublished - 19 Jul 2007

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