ChemicalBook > CAS DataBase List > 3,7-Dibromo-1,5-naphthyridine

3,7-Dibromo-1,5-naphthyridine

Application

Product Name: 3,7-Dibromo-1,5-naphthyridine
CAS No.: 17965-72-9
Chemical Name: 3,7-Dibromo-1,5-naphthyridine
Synonyms: 3,7-Dibromo-1,5phthyridine;3,7-Dibromo-1,5-naphthyridine;1,5-Naphthyridine, 3,7-dibromo-;3,7-Dibromo-1,5-naphthyridine ISO 9001：2015 REACH
CBNumber: CB92297214
Molecular Formula: C8H4Br2N2
Formula Weight: 287.94
MOL File: 17965-72-9.mol

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3,7-Dibromo-1,5-naphthyridine Property

Boiling point:: 326.9±37.0 °C(Predicted)
Density: 2.022±0.06 g/cm3(Predicted)
storage temp.: Store at room temperature
pka: -0.52±0.30(Predicted)
Appearance: White to off-white Solid

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

AK Scientific

Product number: 3222AH
Product name: 3,7-Dibromo-1,5-naphthyridine
Packaging: 1g
Price: $127
Updated: 2021/12/16

AK Scientific

Product number: 3222AH
Product name: 3,7-Dibromo-1,5-naphthyridine
Packaging: 5g
Price: $343
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: HCH0364303
Product name: 3,7-DIBROMO-1,5-NAPHTHYRIDINE
Purity: 95.00%
Packaging: 5MG
Price: $502.35
Updated: 2021/12/16

Alichem

Product number: 17965729
Product name: 3,7-Dibromo-1,5-naphthyridine
Packaging: 5g
Price: $648
Updated: 2021/12/16

Alichem

Product number: 17965729
Product name: 3,7-Dibromo-1,5-naphthyridine
Packaging: 10g
Price: $969.6
Updated: 2021/12/16

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3,7-Dibromo-1,5-naphthyridine Chemical Properties,Usage,Production

Application

3,7-Dibromo-1,5-naphthidine is a pharmaceutical intermediate that can be obtained by brominating 1,5-naphthidine with elemental bromine. 3,7-Dibromo-1,5-naphthidine can be used to prepare an electron transport material.

Synthesis

254-79-5

17965-72-9

General procedure for the synthesis of 3,7-dibromo-1,5-naphthyridine from 1,5-naphthyridine: 1. 1,5-naphthyridine (30.80 g, 236.7 mmol) and sodium acetate (38.83 g, 473.3 mmol) were dissolved in acetic acid (236.7 mL) and heated to 60°C. The mixture was then heated to 60°C. The mixture was then heated to 60°C. 2. a solution of bromine (25.6 mL, 496.9 mmol) in acetic acid (35 mL) was added slowly and dropwise over 30 minutes. 3. the reaction mixture is stirred continuously at 60°C for 22 hours. 4. After completion of the reaction, it was cooled to room temperature, diluted with water (250 mL) and alkalized with 4N aqueous NaOH (300 mL), at which time a beige precipitate was produced. 5. The precipitate was collected by filtration and washed with water, methanol and acetone. 6. The resulting solid (54.7 g) was recrystallized from chloroform (1.36 L) to afford a pure cream colored solid 3,7-dibromo-1,5-naphthyridine (30 g, 44% yield). Product characterization: 1H NMR (400 MHz, CDCl3) δ 9.08-8.95 (m, 2H), 8.62 (dd, J = 2.2, 0.7 Hz, 1H), 8.46-8.35 (m, 1H), 8.23 (d, J = 8.8 Hz, 1H), 7.79 (d, J = 8.8 Hz, 1H), 7.69 (dd, J = 8.5, 4.3 Hz, 1H). [M + H]+ = 286.9.

References

[1] Patent: US2014/275548, 2014, A1. Location in patent: Paragraph 0370; 0371

3,7-Dibromo-1,5-naphthyridine Preparation Products And Raw materials

Raw materials

Preparation Products

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17965-72-9, 3,7-Dibromo-1,5-naphthyridineRelated Search:

3,7-Dibromo-1,5-naphthyridine

3,7-Dibromo-1,5phthyridine

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3,7-Dibromo-1,5-naphthyridine ISO 9001：2015 REACH

17965-72-9