Title of article :
Selective acylation of 4,5-diamino-9,9′-dimethylxanthene through an aggregation effect
Author/Authors :
Muٌiz، نويسنده , , Francisco M. and Simَn، نويسنده , , Luis and Sلez، نويسنده , , Silvia and Raposo، نويسنده , , César and Morلn، نويسنده , , Joaquيn R. and Benedito، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2008
Abstract :
The proximity of the 4,5-diamino groups in a 9,9′-dimethylxanthene skeleton provides unique reactivity due to aggregation effects. While treatment with 1 equiv of an isocyanate yields the diurea and starting material, under similar conditions, Boc2O provides essentially only the monocarbamoyl derivative.
Keywords :
Selective acylation , Molecular recognition , Hydrogen-bond catalysis
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
