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Home > Encyclopedia > 2-Bromo-4-chlorobenzonitrile

2-Bromo-4-chlorobenzonitrile

2-Bromo-4-chlorobenzonitrile structure

2-Bromo-4-chlorobenzonitrile 

structure
  • CAS No:

    57381-49-4

  • Formula:

    C7H3BrClN

  • Chemical Name:

    2-Bromo-4-chlorobenzonitrile

  • Synonyms:

    Benzonitrile,2-bromo-4-chloro-;2-Bromo-4-chlorobenzonitrile

Description

off-white crytalline

2-Bromo-4-chlorobenzonitrile Basic Attributes

216.46242

216.46

DTXSID10634517

Characteristics

23.8

3

1.7±0.1 g/cm3

284.0±25.0℃ (760 Torr)

125.6±23.2℃

1.623

Safety Information

IRRITANT

P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P311, P312, P321, P322, P330, P332+P313, P337+P313, P361, P362, P363, P403+P233, P405, P501

H301+H311+H331

|Danger|H301+H311+H331 (100%): Toxic if swallowed, in contact with skin or if inhaled [Danger Acute toxicity, oral; acute toxicity, dermal; acute toxicity, inhalation]|P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P311, P312, P321, P322, P330, P332+P313, P337+P313, P361, P362, P363, P403+P233, P405, and P501|Aggregated GHS information provided by 2 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

2-Bromo-4-chlorobenzonitrile Use and Manufacturing

2-Bromo-4-chlorobenzonitrile; 588 mg (2.5 mmol) of 2-bromo-4-chlorobenzoic acid and 300 mg of urea are dissolved in dichloromethane/methanol and concentrated onto 364 mg of alumina (neutral) on a rotary evaporator. The residue is microwaved at 150° C. for a total of 60 min. After cooling, the residue is stirred with ethyl acetate and water, filtered, and the aqueous phase is separated. The organic phase is washed with a sodium hydrogen carbonate solution, dried over sodium sulfate, concentrated on a rotary evaporator and then dried under high vacuum. The product (383 mg, 80percent pure, 57percent of theory.) is reacted further without additional purification.To a solution of In 25 ml in the reactor, adding 2 - bromo -4 - chloroaniline (0.041 g, 0.2 mmol) and cuprous iodide (0.008 g, 0 . 04 mmol) butyl potassium (0.045 g, 0.4 mmol), vacuum replace the nitrogen after three times into the phenylacetylene (0.031 g, 0.3 mmol) and water (0.011 g, 0.6 mmol), in anhydrous 1, 4 - dioxane 1.5 ml, 110 C under stirring 16 h after. Column chromatography (silica gel, 200 - 300 mesh; developing agent, petroleum ether: ethyl acetate=10:1) to obtain 5 - chloro -3 - (benzylidene) isoindoline -1 - one 0.038 g, yield 74%.

Computed Properties

Molecular Weight:216.46
XLogP3:3
Hydrogen Bond Acceptor Count:1
Exact Mass:214.91374
Monoisotopic Mass:214.91374
Topological Polar Surface Area:23.8
Heavy Atom Count:10
Complexity:162
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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