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2040-89-3

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2040-89-3 Usage

Chemical Properties

Pale yellow liquid

Check Digit Verification of cas no

The CAS Registry Mumber 2040-89-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,4 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2040-89:
(6*2)+(5*0)+(4*4)+(3*0)+(2*8)+(1*9)=53
53 % 10 = 3
So 2040-89-3 is a valid CAS Registry Number.
InChI:InChI=1/C6H4BrFO/c7-4-2-1-3-5(8)6(4)9/h1-3,9H

2040-89-3SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-Bromo-6-fluorophenol

1.2 Other means of identification

Product number -
Other names 2-Fluoro-6-bromophenol

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:2040-89-3 SDS

2040-89-3Relevant articles and documents

Phenol compound ortho-position direct fluorination method

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Paragraph 0058-0060, (2020/04/17)

The invention relates to a phenol compound ortho-position direct fluorination method which comprises the following steps: reacting a phenol compound shown in a formula (1A) with a fluorination reagentin a solvent under the action of a photocatalyst and a light source at room temperature, and separating and purifying a reaction mixture after the reaction to obtain a fluorinated phenol compound shown in a formula (2A). The advantages are as follows: the method for directly fluorinating phenol by organic photocatalysis is simple in operation process; raw materials are commercialized and easy toobtain; the photocatalyst is low in price, easy to obtain and environmentally friendly; the reaction condition is mild; the site selectivity is high; the reaction is efficient; and a fluorinated phenol derivative can be prepared only through one step.

PROCESS FOR PRODUCING 1,2-DIALKOXY-3-FLUOROBENZENE

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Page/Page column 7, (2009/06/27)

The present invention relates to a process for producing a 2-fluoro-6-halophenol as an intermediate; a process for producing a 2-alkoxy-3-fluorophenol and further a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; a second process for producing a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; and a 2-alkoxy-3-fluorophenol. The 2-fluoro-6-halophenol can be obtained using a 2-fluorophenol as a starting material and through a sulfonation reaction, a halogenation reaction, and a deprotection reaction. The 2-fluoro-6-halophenol is alkyl-etherified, and subsequently the halogen atom is converted into a hydroxyl group to obtain the 2-alkoxy-3-fluorophenol, which is further alkyl-etherified to thereby obtain the 1,2-dialkoxy-3-fluorobenzene. Alternatively, a 1,2-dialkoxy-3-fluorobenzene is also obtained by converting the halogen atom of the 2-fluoro-6-halophenol into a hydroxyl group to thereby form 3-fluorocatechol and subsequently alkyl-etherifying two hydroxyl groups thereof. The processes of the invention realize low production costs and high process yields, and thus are suitable for industrial production of a 1,2-dialkoxy-3-fluorobenzene.

Preparation of monofluorophenols via the reaction of difluorobenzene derivatives with potassium trimethylsilanoate

Li, Jianqing,Smith, Daniel,Qiao, Jennifer X.,Huang, Stella,Krishnananthan, Subramaniam,Wong, Henry S.,Salvati, Mark E.,Balasubramanian, Balu N.,Chen, Bang-Chi

scheme or table, p. 633 - 637 (2009/07/01)

An efficient synthesis of monofluorophenols via the reaction of difluorobenzene derivatives with potassium trimethylsilanoate in moderate to excellent yields is described. High regioselectivity was observed in some cases. Georg Thieme Verlag Stuttgart.

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