2011
Morales-Ríos Martha S., López-Camacho Perla Y., Jacobo-Cabral Carlos O., Pérez-Rojas Nadia A., Trujillo-Serrato Joel J., Burgueño-Tapia Eleuterio, Súarez-Castillo Oscar R., Joseph-Nathan Pedro. Unimolecular rearrangements of ketene-O,O-acetals and fragmentations occurring in the gas phase.J. Mass. Spectrom. 46, 489495 (2011). DOI 10.1002/jms.1915.
Abstract
Gas phase skeletal rearrangements of regioisomeric 3-cyano-2-methoxy-3a-alkylfuro[2,3-b]- and [3,2-b]indoles were evidenced by product ions [M ? 32]+, consistent with loss of methanol, on electron ionization in their mass spectra. The rearranged products occurring in gas phase were demonstrated to have elemental composition and fragmentation properties identical to those of authentic samples of 2-indolyl cyanomalonates. Isotopic labeling experiments support the formation mechanism of the [M ? 32]+ ion. Additional thermal gas-phase reaction products were characterized by comparison with an authentic sample.
Configuration, stereodynamics and crystal structure of 3-substituted-2-oxofuro[2,3-b]indoles
Aromatic Bromination versus Oxidation of Indolylmalonates by Bromine
Transesterifications mediated by t-BuNH2
The absoluteconfiguration of cuauhtemone and related compounds
One-potsynthesis of conformationallyrestrictedspirooxindoles
Role of lipid peroxidation in biliary obstruction in the rat
Regioselective Synthesis of 3-Indolyl(alkoxy)acetates
Synthesis of Bromoindole Alkaloids from Laurencia brongniartii