title: Synthesis of dimethyl derivatives of imidazolinone herbicides: their use in efficient gas chromatographic methods for the determination of these herbicides.
abstract: The dimethyl derivatives of imazaquin, imazapyr, imazmethapyr, imazethapyr, 2-[4,5 dihydro-1, 4-dimethyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-methoxymethyl- 3-pyridine carboxylic acid, 2-[4,5-dihydro-1,4 -dimethyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-4-methyl benzoic acid, and 2-[4,5-dihydro-1,4-dimethyl-4-(1-methyl ethyl)-5-oxo-1H-imidazol-2-yl]-5-methyl benzoic acid were prepared and fully characterized. The availability of these derivatives has led to the development of efficient and multiresidue gas chromatographic methods for trace level analysis of imidazolinone herbicides in matrixes such as water, soybean, and soil.
authors.affiliation: Ohio Department of Agriculture, Consumer Analytical Laboratory, 8995 East Main Street, Reynoldsburg, Ohio 43068, USA. anisuzzaman@odant.agri.state.oh.us
authors.forename: A K
authors.initials: AK
authors.lastname: Anisuzzaman
authors.forename: M
authors.initials: M
authors.lastname: Amin
authors.forename: N
authors.initials: N
authors.lastname: Ogg
authors.forename: F
authors.initials: F
authors.lastname: Hoq
authors.forename: M R
authors.initials: MR
authors.lastname: Kanithi
authors.forename: R E
authors.initials: RE
authors.lastname: Jenkins
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry; D006540:Herbicides / Q000032:analysis* / Q000138:chemical synthesis; D009682:Magnetic Resonance Spectroscopy; D012987:Soil / Q000032:analysis; D013025:Glycine max / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: D006540:Herbicides; D012987:Soil; D014867:Water