Title of article
Regioselective O-alkylations and acylations of polyphenolic substrates using a calix[4]pyrrole derivative
Author/Authors
Cafeo، نويسنده , , Grazia and Kohnke، نويسنده , , Franz H. and Valenti، نويسنده , , Luca، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2009
Pages
3
From page
4138
To page
4140
Abstract
The 10α,20α-bis(4-nitrophenyl)-calix[4]pyrrole 2 can act as a topologically selective protecting group in the O-alkylation and acylation of polyphenolic polycyclic aromatic compounds thanks to the regioselective formation of phenolate-type complexes. Remarkably, the host–guest interaction with the anionic reagents is sufficiently strong and kinetically slow to produce a high degree of selectivity.
Keywords
Calixpyrroles , Supramolecular chemistry , Anions , Reactivity control , aromatic compounds
Journal title
Tetrahedron Letters
Serial Year
2009
Journal title
Tetrahedron Letters
Record number
1864938
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