2011
Suarez-Castillo, OR; Melendez-Rodriguez, M; Castelan-Duarte, LE; Zuniga-Estrada, EA; Cruz-Borbolla, J; Morales-Rios, MS ; Joseph-Nathan, P., Absolute configuration assignment of 3-oxindolylacetyl-4-phenyloxazolidinone derivativesTETRAHEDRON-ASYMMETRY. Año:2011 Volume: 22 Issue: 24 Pages: 2085-2098 DOI: 10.1016/j.tetasy.2011.11.018 .
Abstract
The straightforward determination of the absolute configuration of 2-oxo-3-indolylacetic acid derivatives 5a?e, based on analysis of the 1H NMR spectra of their oxindolylacetyl-phenyloxazolidinones 6a?e, is described. The conformational preferences for two diastereomeric amides were calculated by DFT, which matched well with the experimental results, while X-ray diffraction analysis allowed us to validate the methodology. Independent absolute configuration evidence was also obtained by vibrational circular dichroism.
DFT and NMR parameterized conformation of valeranone
Synthesis of Bromoindole Alkaloids from Laurencia brongniartii
Mechanisticstudies of the photochemicalrearrangement of 1-oxolongipin-2-ene derivatives
Synthesis of Indolylindolines Mediated by tert-BuNH2
Cleavage of alkoxycarbonylprotectinggroups from carbamates by t-BuNH2
Photochemical rearrangements of highly functionalized longipinene derivatives
Absolute configuration determination of 2-(2-oxo-3-indolyl)acetamide derivatives