2008
Suárez-Castillo Oscar R., Montiel-Ortega Luis Alberto, Fragoso-Vázquez Manuel Jonathan, Meléndez-Rodríguez Myriam, Sánchez-Zavala Maricruz, Transesterifications mediated by t-BuNH2. Tetrahedron Lett. 49, 996999 (2008). ISSN 0040-4039. doi:10.1016/j.tetlet.2007.12.013
Abstract
A mild protocol for transesterification of simple esters is described. The method is based on the use of t-BuNH2/ROH (R = Me, Et, i-Pr, t-Bu) with or without LiBr. The scope of the procedure was explored for aliphatic and aromatic esters. The protocol is particularly useful when going from higher to lower hindered esters and harsh reaction conditions are needed for the reversal process. A rationalization of the mechanism is presented. The scope and limitation of this transformation are also described.
Cleavage of alkoxycarbonyl protecting groups from carbamates by t-BuNH2
First Total Synthesis of ()-Flustraminol B
Role of lipid peroxidation in biliary obstruction in the rat
The absoluteconfiguration of cuauhtemone and related compounds
Synthesis of 6-bromo-2-arylindoles using 2-iodobenzoic acid as precursor
Unimolecular rearrangements of ketene-O,O-acetals and fragmentations occurring in the gas phase
Synthesis of Indolylindolines Mediated by tert-BuNH2
Conformational studies on indole alkaloids from Flustra foliacea by NMR and molecular modeling
Total Syntheses of Five Indole Alkaloids from the Marine Bryozoan Flustra foliacea