4,6-Dichloroquinazoline
Application- Product Name
- 4,6-Dichloroquinazoline
- CAS No.
- 7253-22-7
- Chemical Name
- 4,6-Dichloroquinazoline
- Synonyms
- 6-dichloroquinazoline;4,6-DICHLOROQUINAZOLINE;Quinazoline, 4,6-dichloro-
- CBNumber
- CB2759151
- Molecular Formula
- C8H4Cl2N2
- Formula Weight
- 199.04
- MOL File
- 7253-22-7.mol
4,6-Dichloroquinazoline Property
- Melting point:
- 155-156 °C
- Boiling point:
- 305.7±22.0 °C(Predicted)
- Density
- 1.486±0.06 g/cm3(Predicted)
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- pka
- 0.11±0.30(Predicted)
- Appearance
- Off-white to yellow Solid
Safety
- HS Code
- 2933998090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H301Toxic if swalloed
H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- S658367
- Product name
- 4,6-DICHLOROQUINAZOLINE
- Purity
- Aldrich<sup>CPR</sup>
- Packaging
- 1 unit
- Price
- $113
- Updated
- 2025/07/31
- Product number
- S658367
- Product name
- 4,6-DICHLOROQUINAZOLINE
- Purity
- AldrichCPR
- Packaging
- 25MG
- Price
- $110
- Updated
- 2024/03/01
- Product number
- D438490
- Product name
- 4,6-Dichloroquinazoline
- Packaging
- 10mg
- Price
- $45
- Updated
- 2021/12/16
- Product number
- D438490
- Product name
- 4,6-Dichloroquinazoline
- Packaging
- 50mg
- Price
- $60
- Updated
- 2021/12/16
- Product number
- 072010
- Product name
- 4,6-Dichloroquinazoline
- Purity
- 95+%
- Packaging
- 1g
- Price
- $76
- Updated
- 2021/12/16
4,6-Dichloroquinazoline Chemical Properties,Usage,Production
Application
4,6-Dichloroquinazoline is widely used due to its high pharmacological activity and diverse biological activities. It possesses two carbon-nitrogen double bonds and is widely found in various alkaloids and organic molecules with biopharmacological activity. Its activities include antitumor, antimalarial, anti-inflammatory, antibacterial, anticonvulsant, antituberculosis, and antihypertensive effects.
Synthesis
16064-14-5
7253-22-7
General procedure for the synthesis of 4,6-dichloroquinazoline from 6-chloroquinazolin-4-one: 6-chloroquinazolin-4-one (400 mg, 2.21 mmol, 1.0 eq.), phosphoryl chloride (1.99 mL, 21.4 mmol, 9.64 eq.) and triethylamine (0.99 mL, 7.11 mmol, 3.21 eq.) were mixed under nitrogen protection in a reaction flask. The reaction mixture was stirred and refluxed for 2.5 hours at room temperature. Upon completion of the reaction, the solvent was removed by rotary evaporation and the residue was recrystallized twice with toluene to give a brown solid. The solid was dissolved in dichloromethane (25 mL) and the organic phase was washed twice with saturated ammonium chloride solution (25 mL). The organic layer was dried over anhydrous sodium sulfate and concentrated to give a brown solid. The crude product was purified by silica gel column chromatography with an eluent of 9:1 to 3:1 hexane/ethyl acetate to give 4,6-dichloroquinazoline (300 mg) as an off-white solid in 68% yield. The structure of the product was confirmed by 1H NMR (400 MHz, DMSO-d6): δ 9.16 (s, 1H), 8.33 (s, 1H), 8.17 (apparent t, 2H, J = 7 Hz).
References
[1] Patent: WO2015/164374, 2015, A1. Location in patent: Paragraph 00349; 00351
[2] Oriental Journal of Chemistry, 2010, vol. 26, # 4, p. 1401 - 1406
[3] Patent: US2005/54626, 2005, A1. Location in patent: Page/Page column 38
[4] Patent: WO2016/91774, 2016, A1. Location in patent: Page/Page column 21
[5] Zeitschrift fuer Naturforschung, Teil B: Anorganische Chemie, Organische Chemie, 1982, vol. 37, # 7, p. 907 - 911
4,6-Dichloroquinazoline Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 4,6-Dichloroquinazoline manufacturers
- Product
- 4,6-Dichloroquinazoline 7253-22-7
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 200kg
- Release date
- 2020-01-03