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Type: Artigo de periódico
Title: Probing the mechanism of the petasis olefination reaction by atmospheric pressure chemical ionization mass and tandem mass spectrometry
Author: Meurer, EC
Santos, LS
Pilli, RA
Eberlin, MN
Abstract: graphic Atmospheric pressure chemical ionization mass (APCI-MS) and tandem mass spectrometry (APCI-MS/MS) is used to probe the mechanism of the Petasis olefination reaction. Oxatitanacycle intermediates 4 were transferred from solution to the gas phase, detected as 4H(+) by APCI-MS with characteristic Ti-isotopic patterns, and structurally characterized by APCI-MS/MS. Detection of 4H(+), which upon collision activation dissociates to both 3H(+) and Cp2TiOH+, fully supports the Hughes mechanism as depicted above.
Country: EUA
Editor: Amer Chemical Soc
Rights: fechado
Identifier DOI: 10.1021/ol027439b
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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