An analytical method for the determination of 14 organophosphorus flame retardants (OPFRs), including halogenated OPFRs, non-halogenated OPFRs and triphenyl phosphine oxide (TPPO) in biological samples was developed using gas chromatography-mass spectrometry (GC/MS). Biological samples were extracted using microwave-assisted extraction (MAE)
Thymine residues in an oligodeoxyribonucleotide are subject to methylation at N3 by the internucleotide methyl phosphotriester linkages. This alkylation occurs most rapidly in the presence of a strong base such as DBU, but also takes place, at a much slower
Journal of inorganic biochemistry, 94(1-2), 193-196 (2003-03-07)
The methyl transfer from trimethyl phosphate to alkyl thiols was investigated in the presence of zinc ions and in the absence of strong base. The chelating thiol N-(2-mercaptoethyl)picolylamine (MEPAH) was methylated by trimethyl phosphate, in MeOH, in the presence of
The journal of physical chemistry. A, 109(25), 5625-5635 (2006-07-13)
Phosphate esters are important compounds in living systems. Their biological reactions with alcohol and thiol nucleophiles are catalyzed by a large superfamily of phosphatase enzymes. However, very little is known about the intrinsic reactivity of these nucleophiles with phosphorus centers.
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