title: The identification of dilignols from dehydrogenation mixtures of coniferyl alcohol and apocynol [4-(1-Hydroxyethyl)-2-methoxyphenol] by LC-ES-MS/MS.
abstract: A LC-ES-MS/MS method for the identification of dilignols formed by the oxidative cross-coupling of coniferyl alcohol and apocynol has been developed. The identification is based on the generation of ammonium adduct ions [M + NH(4)](+) by electrospray ionization and thereafter the following fragmentation patterns for the selected precursor ions. Fragmentation of several arylglycerol-beta-aryl ether (beta-O-4) and phenyl coumarane (beta-5) model compounds were studied as a reference.
authors.affiliation: Department of Chemistry, Laboratory of Organic Chemistry, P.O. Box 55, and Verifin, Finnish Institute for Verification of the Chemical Weapons Convention, P.O. Box 55, University of Helsinki, Helsinki FIN-00014, Finland. kaisa.syrjanen@helsinki.fi
authors.forename: K
authors.initials: K
authors.lastname: Syrjänen
authors.forename: J
authors.initials: J
authors.lastname: Sipilä
authors.forename: H
authors.initials: H
authors.lastname: Björk
authors.forename: G
authors.initials: G
authors.lastname: Brunow
mesh_terms: D000098:Acetophenones / Q000032:analysis*; D000438:Alcohols / Q000737:chemistry*; D002853:Chromatography, Liquid / Q000379:methods; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D006139:Guaiacol / Q000031:analogs & derivatives* / Q000032:analysis / Q000737:chemistry; D013058:Mass Spectrometry / Q000379:methods; D010084:Oxidation-Reduction; D010636:Phenols / Q000032:analysis* / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods
chemical_list: D000098:Acetophenones; D000438:Alcohols; D010636:Phenols; C534597:apocynol; D006139:Guaiacol; C010559:coniferyl alcohol