Welcome to LookChem.com Sign In|Join Free

CAS

  • or

212386-71-5

Post Buying Request

212386-71-5 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier
  • China Largest factory Manufacturer Supply Highest Quality 2,3-Difluoro-4-ethoxybenzeneboronic acid CAS 212386-71-5

    Cas No: 212386-71-5

  • USD $ 1.0-3.0 / Kilogram

  • 1 Kilogram

  • 1000 Kilogram/Day

  • Leader Biochemical Group
  • Contact Supplier

212386-71-5 Usage

Chemical Properties

off-white powder

Uses

suzuki reaction

Flammability and Explosibility

Notclassified

Check Digit Verification of cas no

The CAS Registry Mumber 212386-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,3,8 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 212386-71:
(8*2)+(7*1)+(6*2)+(5*3)+(4*8)+(3*6)+(2*7)+(1*1)=115
115 % 10 = 5
So 212386-71-5 is a valid CAS Registry Number.
InChI:InChI=1/C8H9BF2O3/c1-2-14-6-4-3-5(9(12)13)7(10)8(6)11/h3-4,12-13H,2H2,1H3

212386-71-5 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • TCI America

  • (E1192)  4-Ethoxy-2,3-difluorophenylboronic Acid (contains varying amounts of Anhydride)  

  • 212386-71-5

  • 1g

  • 390.00CNY

  • Detail
  • TCI America

  • (E1192)  4-Ethoxy-2,3-difluorophenylboronic Acid (contains varying amounts of Anhydride)  

  • 212386-71-5

  • 5g

  • 1,290.00CNY

  • Detail
  • Alfa Aesar

  • (H64408)  2,3-Difluoro-4-ethoxybenzeneboronic acid, 98%   

  • 212386-71-5

  • 1g

  • 432.0CNY

  • Detail
  • Alfa Aesar

  • (H64408)  2,3-Difluoro-4-ethoxybenzeneboronic acid, 98%   

  • 212386-71-5

  • 5g

  • 1729.0CNY

  • Detail

212386-71-5SDS

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 (4-ethoxy-2,3-difluorophenyl)boronic acid

1.2 Other means of identification

Product number -
Other names 2,3-Difluoro-4-ethoxyphenylboronic acid

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:212386-71-5 SDS

212386-71-5Relevant articles and documents

Synthesis process of 2, 3-difluoro-4-alkoxy phenol

-

Paragraph 0034-0036; 0038-0040, (2020/04/06)

The invention discloses a synthesis process of 2, 3-difluoro-4-alkoxy phenol, and belongs to the technical field of organic synthesis. The process comprises the following steps: using 2, 3-difluorophenylalkyl ether as a raw material, carrying out lithiation by use of n-butyllithium under an ultralow temperature condition, reacting with boric acid ester, adding an alkali for quenching to obtain 2,3-difluoro-4-alkoxy benzene borate, oxidizing in the presence of hydrogen peroxide, and performing acidolysis to obtain 2, 3-difluoro-4-alkoxy phenol, so that the purity of the purified product can reach more than 99.95 %, the impurity content is less than 50ppm, and the requirements of electronic-grade products are met. Boric acid and the alkali can form salt, the salt is dissolved in water and subjected to a homogeneous reaction for an oxidation reaction during oxidation in the presence of the hydrogen peroxide, the reaction conditions are mild, impurities are few, the product purity is high, the solvent can be recycled, and industrial production is easy to achieve.

Preparation method of 2, 3-difluoro-4-alkoxy phenol

-

Paragraph 0017-0018, (2018/02/04)

Relating to the technical field of organic synthesis, the invention discloses a preparation method of 2, 3-difluoro-4-alkoxy phenol. 2, 3-difluorobenzene ether, n-butyllithium, trimethyl borate, acetic acid and hydrogen peroxide are adopted as the raw materials, tetrahydrofuran is taken as the solvent, and by means of organic lithiation, boration, oxidization, pulping filtration and other steps, a 2, 3-difluoro-4-alkoxy phenol product can be obtained. The method provided by the invention has the advantages of cheap and easily available raw materials, mild reaction conditions, simple aftertreatment operation, low production cost, a total yield up to more than 66%, and product purity of more than 99.9%, and is suitable for industrialized production.

A transformer having negative dielectric anisotropy liquid crystal compound monofluoroethylene, and using this liquid crystal display element and a liquid crystal composition

-

, (2016/11/17)

A liquid crystal compound having general physical properties necessary for a liquid crystal compound, a high stability to heat, light or the like, a small viscosity, a suitable refractive index anisotropy, a suitable dielectric anisotropy and steep electro-optic characteristics, a wide temperature range of a nematic phase and an excellent compatibility with other liquid crystal compounds, and a liquid crystal compound especially having a wide temperature range of a nematic phase. A compound represented by formula (1). with, for example, R1 and R2 are alkyl having 1 to 10 carbons; A1 is 1,4-cyclohexylene; A2 is 2,3-difluoro-1,4-phenylene; X is fluorine or chlorine; Z1 and Z2 are a single bond; and p and q is 0 or 1.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 212386-71-5