The Synthesis of Ethyl Ethoxymethyleneoxalacetate and Related Compounds

Jones, Reuben G.

doi:10.1021/ja01152a034

Cited by 44 publications

(25 citation statements)

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“…Materials and Measurements: All commercially available solvents and starting materials were used as received without further purification. The H 3 pdc ligand was prepared by the method previously described in the literature 33. The elemental analysis (C, H and N) was performed with a Perkin‐Elmer 2400 Series II element analyzer.…”

Section: Methodsmentioning

confidence: 99%

Two Metal Complexes Based on the Ligand 3, 4‐Pyrazoledicarboxylic Acid: Synthesis, Structures, and Luminescent Properties

Chen

Tao

Wang

et al. 2013

Zeitschrift anorg allge chemie

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Two new metal complexes, {[Cd2(μ2‐H2pdc)2(H2O)8]·[Cd2(H2pdc)4(H2O)2(μ2‐Cl)2]}·2H2O (1), and [Ba2(H2pdc)4(H2O)8]·2H2O (2) (H3pdc = 3, 4‐pyrazoledicarboxylic acid), were synthesized and characterized by elemental analysis, IR spectroscopy, and single‐crystal X‐ray diffraction. The crystal structures show that compound 1 is an independent unit consisting of two discrete dinuclear complex ions [Cd2(μ2‐H2pdc)2(H2O)8]2+ cation and [Cd2(H2pdc)4(H2O)2(μ2‐Cl)2]2– anion, and the two kinds of ions are linked by hydrogen bonds and electrostatic interactions to generate a 3D supramolecular network. Complex 2 is a common dinuclear structure, which is further assembled to a 3D supramolecular network through intermolecular hydrogen bonds and π–π stacks. The hydrogen bonding interactions involving lattice water or coordinated water molecules all exist in complexes 1 and 2. Notably, three coordination modes of 3, 4‐pyrazoledicarboxylic acid were observed. The thermal and photoluminescent properties of complexes 1 and 2 in the solid state were also investigated.

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Section: Methodsmentioning

confidence: 99%

Two Metal Complexes Based on the Ligand 3, 4‐Pyrazoledicarboxylic Acid: Synthesis, Structures, and Luminescent Properties

Chen

Tao

Wang

et al. 2013

Zeitschrift anorg allge chemie

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“…Lanthanide chloride salts and nitrate salts were prepared by dissolving lanthanide oxides with 12 M HCl/12 M HNO 3 while adding a bit of H 2 O and then evaporating at 100°C until the crystal film formed. 3,4-Pyrazoledicarboxylic acid (H 3 pdc) was prepared following the literature method [12]. Powder X-ray diffraction (PXRD) determinations were performed on an X-ray diffractometer (D/max 2500 PC, Rigaku) with Cu Ka radiation (1.5406 Å).…”

Section: Materials and Measurementsmentioning

confidence: 99%

Lanthanide(III)-based coordination monomers and polymers of 3,4-pyrazoledicarboxylate: Extended synergy within the ligand, structures and magnetic properties

Cheng

Tao

Chen

et al. 2015

Inorganica Chimica Acta

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“…Compound 14 was prepared according to the procedure of R. G. Jones by condensing ethyl oxalacetate with ethyl orthoformate in the presence of acetic anhydride (14).…”

Section: [34-b]mentioning

confidence: 99%

Synthesis and Herbicidal Activity of Dihydropyrano [2,3-b] pyridylimidazolinones and Related Compounds

Tseng¹,

Girotra²,

Cribbs³

et al. 1991

ACS Symposium Series

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Dihydropyrano[2,3-b]pyridylimidazolinonesand related compounds represent a new series in the imidazolinone herbicide family developed by American Cyanamid Company. The synthesis of the parent compound was accomplished by a novel enaminone-directed cyclization to the pyrano ring in the key step.These compounds showed excellent herbicidal activity with soybean selectivity. The intensive chemical synthesis program on the pyridylimidazolinone herbicides at the Agricultural Research Division of American Cyanamid resulted in the discovery of several important crop protection products (1-7).Among them are 2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)nicotinic acid 1 (AC 243,997, imazapyr) and its isopropylamine salt 2 (AC 252,925) registered by American Cyanamid as ARSENAL, ASSAULT and CHOPPER total vegetation control herbicides.Attachment of a benzo ring to the pyridine ring in 1 forms a quinoline analog, 3 (AC 252,214, imazaquin, registered by American Cyanamid under the trademark SCEPTER). This compound exhibits excellent safety on soybeans while maintaining control of a wide range of weeds.

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The Synthesis of Ethyl Ethoxymethyleneoxalacetate and Related Compounds

Cited by 44 publications

References 0 publications

Two Metal Complexes Based on the Ligand 3, 4‐Pyrazoledicarboxylic Acid: Synthesis, Structures, and Luminescent Properties

Two Metal Complexes Based on the Ligand 3, 4‐Pyrazoledicarboxylic Acid: Synthesis, Structures, and Luminescent Properties

Lanthanide(III)-based coordination monomers and polymers of 3,4-pyrazoledicarboxylate: Extended synergy within the ligand, structures and magnetic properties

Synthesis and Herbicidal Activity of Dihydropyrano [2,3-b] pyridylimidazolinones and Related Compounds

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The Synthesis of Ethyl Ethoxymethyleneoxalacetate and Related Compounds

Cited by 44 publications

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Two Metal Complexes Based on the Ligand 3, 4‐Pyrazoledi­carboxylic Acid: Synthesis, Structures, and Luminescent ­Properties

Two Metal Complexes Based on the Ligand 3, 4‐Pyrazoledi­carboxylic Acid: Synthesis, Structures, and Luminescent ­Properties

Lanthanide(III)-based coordination monomers and polymers of 3,4-pyrazoledicarboxylate: Extended synergy within the ligand, structures and magnetic properties

Synthesis and Herbicidal Activity of Dihydropyrano [2,3-b] pyridylimidazolinones and Related Compounds

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Two Metal Complexes Based on the Ligand 3, 4‐Pyrazoledicarboxylic Acid: Synthesis, Structures, and Luminescent Properties

Two Metal Complexes Based on the Ligand 3, 4‐Pyrazoledicarboxylic Acid: Synthesis, Structures, and Luminescent Properties