| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5278755 | Tetrahedron Letters | 2008 | 4 Pages |
Abstract
The proximity of the 4,5-diamino groups in a 9,9â²-dimethylxanthene skeleton provides unique reactivity due to aggregation effects. While treatment with 1Â equiv of an isocyanate yields the diurea and starting material, under similar conditions, Boc2O provides essentially only the monocarbamoyl derivative.
Graphical abstractThe proximity of the 4,5-diamino groups in a 9,9â²-dimethylxanthene skeleton provides unique reactivity due to aggregation effects. While treatment with 1Â equiv of an isocyanate yields the diurea and starting material, under similar conditions, Boc2O essentially provides the monocarbamoyl derivative.Download full-size image
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Francisco M. Muñiz, Luis Simón, Silvia Sáez, César Raposo, JoaquÃn R. Morán,