Trapping enols of esters and lactones with diazomethane
Suárez Castillo, Oscar Rodolfo
2007
Trapping enols of esters and lactones with diazomethane.Martha S. Morales-Ríos, Perla Y. López-Camacho, Oscar R. Suárez-Castillo, Pedro Joseph-Nathan. DOI: http://dx.doi.org/10.1016/j.tetlet.2007.02.006
Abstract
A series of regioisomeric ketene-O,O-dialkyl acetals were prepared from ambident ?-dicarbonylfuroindoles by trapping the enol tautomers of esters and lactones with diazomethane. Definitive structural characterization was accomplished by X-ray crystal structure determination on a ketene-O,O-dimethyl acetal (R = Me).
Artículos relacionados
Aromatic Bromination versus Oxidation of Indolylmalonates by Bromine
Synthesis of 6-bromo-2-arylindoles using 2-iodobenzoic acid as precursor
One-potsynthesis of conformationallyrestrictedspirooxindoles
Conformational studies on indole alkaloids from Flustra foliacea by NMR and molecular modeling
Regioselective Synthesis of 3-Indolyl(alkoxy)acetates
Synthesis of Bromoindole Alkaloids from Laurencia brongniartii
13C NMR and crystallographic evidence of push-pull effects in furoindolic ?-enamino esters
First Total Synthesis of ()-Flustraminol B
Unimolecular rearrangements of ketene-O,O-acetals and fragmentations occurring in the gas phase