4,7-Dibromo-2,1,3-benzoxadiazole
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4,7-Dibromo-2,1,3-benzoxadiazole
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CAS No:
54286-63-4
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Formula:
C6H2Br2N2O
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Chemical Name:
4,7-Dibromo-2,1,3-benzoxadiazole
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Synonyms:
2,1,3-Benzoxadiazole,4,7-dibromo-;Benzofurazan,4,7-dibromo-;4,7-Dibromo-2,1,3-benzoxadiazole;4,7-Dibromobenzofurazan;1809355-88-1
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CAS No:
4,7-Dibromo-2,1,3-benzoxadiazole Use and Manufacturing
Benzo[c][l, 2, 5]oxadiazole (2.5 g, 21 mmol) was heated to 90 Benzo[c][l, 2, 5]oxadiazole (2.5 g, 21 mmol) was heated to 90 The preparation steps of the oxadiazole terephthalazole include:In a nitrogen atmosphere, boric acid, 4, 7-dibromo-2, 1, 3 benzoxazole, potassium carbonate and dimethylformamide solvent were added to the first round bottom flask, and stirring was continued for 1-3 hours. Heating the first round bottom flask and raising the temperature to 40-70 C;Adding p-benzoxazole borate to the first round bottom flask, a first catalyst, the first catalyst is selected from tetrakistriphenylphosphine palladium, And continuing to heat the first round bottom flask, raising the temperature to 80-100 C, and reacting for 24-94 hours; cooling the first round bottom flask to room temperature to obtain a first mixed solution; Mixing solution for suction filtration, Drying treatment gives the oxadiazole p-benzoxazole.The molar ratio of the p-benzoxazole borate to the 4, 7-dibromo-2, 1, 3 benzoxadiazole is 1:1.6-1:2.
Computed Properties
Molecular Weight:277.90
XLogP3:2.6
Hydrogen Bond Acceptor Count:3
Exact Mass:277.85134
Monoisotopic Mass:275.85339
Topological Polar Surface Area:38.9
Heavy Atom Count:11
Complexity:142
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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4,7-Dibromo-2,1,3-benzoxadiazole
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