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328-70-1

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328-70-1 Usage

Chemical Properties

clear colourless to slightly yellow liquid

Uses

1,3-Bis(trifluoromethyl)-5-bromobenzene is used to prepare the tetrakis[3,5-bis(trifluoromethyl)phenyl]borate ion, which acts as a stabilizing counterion for electrophilic organic and organometallic cations.

Synthesis Reference(s)

The Journal of Organic Chemistry, 68, p. 3695, 2003 DOI: 10.1021/jo026903n

Check Digit Verification of cas no

The CAS Registry Mumber 328-70-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,2 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 328-70:
(5*3)+(4*2)+(3*8)+(2*7)+(1*0)=61
61 % 10 = 1
So 328-70-1 is a valid CAS Registry Number.
InChI:InChI=1/C8H3ClF6/c9-6-2-4(7(10,11)12)1-5(3-6)8(13,14)15/h1-3H

328-70-1 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • Alfa Aesar

  • (A12337)  1-Bromo-3,5-bis(trifluoromethyl)benzene, 98%   

  • 328-70-1

  • 10g

  • 211.0CNY

  • Detail
  • Alfa Aesar

  • (A12337)  1-Bromo-3,5-bis(trifluoromethyl)benzene, 98%   

  • 328-70-1

  • 50g

  • 861.0CNY

  • Detail
  • Alfa Aesar

  • (A12337)  1-Bromo-3,5-bis(trifluoromethyl)benzene, 98%   

  • 328-70-1

  • 250g

  • 3438.0CNY

  • Detail

328-70-1SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 3,5-Bis(trifluoromethyl)bromobenzene

1.2 Other means of identification

Product number -
Other names TRIFLUOROMETHYL BROMOBENZENE

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:328-70-1 SDS

328-70-1Relevant articles and documents

Direct bromodeboronation of arylboronic acids with CuBr2 in water

Tang, Yan-Ling,Xia, Xian-Song,Gao, Jin-Chun,Li, Min-Xin,Mao, Ze-Wei

supporting information, (2021/01/05)

An efficient and practical method has been developed for the preparation of aryl bromides via the direct bromodeboronation of arylboronic acids with CuBr2 in water. This strategy provides several advantages, such as being ligand-free, base-free, high yielding, and functional group tolerant.

A general strategy for the perfluoroalkylation of arenes and arylbromides by using arylboronate esters and [(phen)CuRF]

Litvinas, Nichole D.,Fier, Patrick S.,Hartwig, John F.

supporting information; experimental part, p. 536 - 539 (2012/02/16)

A versatile method for the synthesis of aryl perfluoroalkanes from arenes and aryl bromides is described. Substituted arenes or aryl bromides are converted in situ to an aryl boronate ester that readily undergoes perfluoroalkylation in air with [(phen)CuRF]. A broad range of aryl bromide substrates were perfluoroalkylated in good yield for the first time. [(phen)CuCF3] is now commercially available and has been prepared on 20g scale. Copyright

1,3-Bis(trifluoromethyl)benzene derivatives

-

Page 3, (2010/02/05)

A method of manufacture of 3,5-bis(trifluoromethyl)bromobenzene, comprising the addition of a brominating reagent to a mixture of 3,5-bis(trifluoromethyl)benzene together with at least one of sulphuric acid or oleum in the absence of acetic acid. A method of production of 3,5-bis(trifluoromethyl)acetophenone comprising the reaction of 3,5-bis(trifluoromethyl)phenyl magnesium bromide with acetyl chloride in the presence of cuprous chloride. A method of production of 3,5-bis(trifluoromethyl)acetophenone comprising the steps of reacting 3,5-bis(trifluoromethyl)phenyl magnesium bromide with acetic anhydride, adding water, and recovering the product by azeotropic distillation. A method of removal of impurities including 3,5-bis(trifluoromethyl)acetate, 4-bromobutyl acetate and 4-chlorobutyl acetate from a preparation of 3,5-bis(trifluoromethyl)acetophenone, the method comprising heating the 3,5-bis(trifluoromethyl)acetophenone with a dilute solution of alkali. A method of production of 3,5-bis(trifluoromethyl)phenyl magnesium bromide comprising the reaction of 3,5-bis(trifluoromethyl)bromobenzene with magnesium in a solvent whilst maintaining the temperature of the reactants above 20° C. and below the reflux temperature of the solvent.

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