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Chemical Structure| 1443329-48-3 Chemical Structure| 1443329-48-3

Structure of 1443329-48-3

Chemical Structure| 1443329-48-3

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Product Details of [ 1443329-48-3 ]

CAS No. :1443329-48-3
Formula : C11H10Cl2O4
M.W : 277.10
SMILES Code : O=C(OC)C(C1=CC(Cl)=CC(Cl)=C1)C(OC)=O

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Application In Synthesis of [ 1443329-48-3 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 1443329-48-3 ]

[ 1443329-48-3 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 3032-81-3 ]
  • [ 108-59-8 ]
  • [ 1443329-48-3 ]
YieldReaction ConditionsOperation in experiment
89% With 2-Picolinic acid; copper(l) iodide; caesium carbonate; at 90℃; for 7h;Inert atmosphere; To a 3-neck 1 L reactor equipped with temperature probe, overhead stirrer, reflux condenser, and nitrogen bubbler, was added copper (I) iodide (4.0 g, 0.021 mol), 2-picolinic acid (5.2 g, 0.042 mol), <strong>[3032-81-3]3,5-dichloroiodobenzene</strong> (99 g, 0.36 mol), and cesium carbonate (233 g, 0.72 mol) under nitrogen. Dioxane (600 mL) and dimethyl malonate (91 g, 0.69 mol, 1.9 eq.) were then added to the solid mixture with stirring under nitrogen. The resulting mixture was then heated to 90 C for 7 h, forming a pale yellow-green slurry. Water (300 mL) and hexanes (200 mL) were added to the cooled reaction mixture at room temperature, stirred for 5 min, and transferred to a separatory funnel, and extracted twice with 75 mL dioxane-hexanes (2: 1). The combined organic phases were washed with saturated aqueous ammonium chloride (200 mL) and concentrated to dryness to remove all dioxane. The residue was mixed with MeOH ( 100 mL) and water (200 mL). After stirring for 30 min, the mixture was cooled to 0 C with an external ice-water bath and slowly stirred for 2 h. Filtration gave 98.6 g of crude material which was dissolved in MeOH ( 160 mL) at 50 C, with stirring, cooled to 0 C over 6 h then maintained at 0 C for 2 h. Filtration gave 85.6 g of the title compound as a fine white crystalline solid. The filtrate was concentrated to remove all MeOH, and the residue was filtered to give an additional 4.12 g of the title compound for a combined 89% yield.
77.1% With 2-Picolinic acid; copper(l) iodide; caesium carbonate; In 1,4-dioxane; at 90℃; for 5h;Inert atmosphere; To a solution of <strong>[3032-81-3]1,3-dichloro-5-iodo-benzene</strong> in 1,4-dioxane (160 mL) was added Copper(I) iodide (0.661g), pyridine-2-carboxylic acid (0.812g), and cesium carbonate (32g) under Argon. Then dimethyl propanedioate (15g) was added at room temperature via dropping funnel.The mixture was heated to 90C for 5h. After completion of the reaction mixture was diluted with water and extracted with ethyl acetate (2x). the combinated organic layers were washed with brine, dried over sodium sulphate and concentrated. The crude was purified by silica gel column chromatography (3RF 200) using a gradient of ethyl acetate (0 to 10%) in cyclohexane to give the title compound (11.75 g, 77.1% Yield). LC-MS (method A): 277 (M+1)+, 275 (M-1)+retention time 1.02 min.
With 2-Picolinic acid; copper(l) iodide; caesium carbonate; In 1,4-dioxane; at 90℃; for 3h;Inert atmosphere; A 1000-mL flask equipped with overhead stirrer, condenser and thermometer was charged with l,3-dichloro-5-iodobenzene (99.0 g, 0.36 mol), 1,3-dimethyl 2-(3,5- dichlorophenyl)propanedioate (91.0 g, 0.69 mol), copper(I) iodide (4.0 g, 0.021mol), 2-picolinic acid (5.2 g, 0.042 mol) and cesium carbonate (350 g, 1.07 mol) in 1,4-dioxane (600 mL). The reaction mixture was heated under nitrogen to 90 C for 3 hours. The mixture was then cooled to 30 C, diluted with water (300 mL) and hexane (200 mL), and partitioned. The organic phase was washed with saturated aqueous ammonium chloride solution (200 mL) and concentrated under vacuum to a viscous oil. The resulting material was used directly in the next step.
 

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