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[ CAS No. 28418-89-5 ] {[proInfo.proName]}

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Chemical Structure| 28418-89-5
Chemical Structure| 28418-89-5
Structure of 28418-89-5 * Storage: {[proInfo.prStorage]}
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Product Details of [ 28418-89-5 ]

CAS No. :28418-89-5 MDL No. :MFCD07437960
Formula : C8H3IO3 Boiling Point : -
Linear Structure Formula :- InChI Key :HAXOVWANMPEGGM-UHFFFAOYSA-N
M.W : 274.01 Pubchem ID :15263377
Synonyms :

Safety of [ 28418-89-5 ]

Signal Word:Danger Class:8,6.1
Precautionary Statements:P260-P264-P270-P271-P280-P301+P330+P331-P302+P352-P303+P361+P353-P304+P340-P305+P351+P338-P310-P403+P233-P405-P501 UN#:2923
Hazard Statements:H301-H311-H314-H331 Packing Group:
GHS Pictogram:

Application In Synthesis of [ 28418-89-5 ]

* 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.

  • Upstream synthesis route of [ 28418-89-5 ]
  • Downstream synthetic route of [ 28418-89-5 ]

[ 28418-89-5 ] Synthesis Path-Upstream   1~1

  • 1
  • [ 28418-89-5 ]
  • [ 28418-88-4 ]
  • [ 36978-41-3 ]
YieldReaction ConditionsOperation in experiment
74.15% at 30℃; for 8 h; Inert atmosphere General procedure: In a 1000 ml three-necked flask, 18.3 g (0.1 mol) of 4-chlorophthalic anhydride and 18.3 g (0.1 mol) were added 3-chlorophthalic anhydride, 300 g of anisole as solvent, 0.13 g (0.001 mol) of nickel chloride as a catalyst, 0.198 g (0.001 mol) of C-1 as a catalyst ligand, and 0.03 g (0.0003 mol) of sodium bromide as a catalyst Auxiliary, 13 g (0.2 mol) of zinc powder was used as a reducing agent, and the reaction was stirred at 30 ° C for 8 hours under a nitrogen atmosphere. The reaction solution was filtered to remove insoluble solids in the reaction liquid. 300 g of methanol was added to the filtration mother liquor, and the product was precipitated, filtered, and dried to obtain 25.8 g of the product 2,3,3',4'-biphenyltetracarboxylic dianhydride, yield 87.7percent. The synthesis method was the same as in Example 1, except that the types of 4-substituted phthalic anhydride and 3-substituted phthalic anhydride were changed.
Reference: [1] Patent: CN108250169, 2018, A, . Location in patent: Paragraph 0010; 0055; 0065-0067
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