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2,5-Dibromobenzo[b]thiophene is an organic chemical compound characterized by the presence of two bromine atoms at the 2nd and 5th positions on the benzo[b]thiophene ring. Benzo[b]thiophene itself is a heterocyclic aromatic compound consisting of a benzene ring fused to a thiophene ring. The addition of bromine atoms at specific positions on the molecule can significantly alter its chemical properties, such as reactivity, polarity, and solubility. 2,5-DIBROMOBENZO[B]THIOPHENE may be used in various chemical synthesis processes, potentially serving as an intermediate in the production of pharmaceuticals, agrochemicals, or other specialty chemicals. Due to the presence of bromine, it is also important to consider the environmental and health implications associated with the use and disposal of brominated compounds.

7312-17-6

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7312-17-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7312-17-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,3,1 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 7312-17:
(6*7)+(5*3)+(4*1)+(3*2)+(2*1)+(1*7)=76
76 % 10 = 6
So 7312-17-6 is a valid CAS Registry Number.

7312-17-6SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,5-dibromobenzo[b]thiophene

1.2 Other means of identification

Product number -
Other names 2,5-dibromobenzothiophene

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:7312-17-6 SDS

7312-17-6Relevant academic research and scientific papers

Trace amount Cu (ppm)-catalyzed intramolecular cyclization of 2-(gem-dibromovinyl)phenols(thiophenols) to 2-bromobenzofurans(thiophenes)

Ji, Yong,Li, Pinhua,Zhang, Xiuli,Wang, Lei

supporting information, p. 4095 - 4101 (2013/07/05)

An intramolecular cyclization of 2-(gem-dibromovinyl)phenols(thiophenols) to give 2-bromobenzofurans(thiophenes) in the presence of a trace amount of Cu (0.0064 mol%, 25 ppm) has been developed. The reaction provides the desired products in excellent yields under fluoride-free and mild reaction conditions and with a TON (turnover number) of up to 1.5 × 104. The Royal Society of Chemistry 2013.

A highly efficient TBAF-promoted intramolecular cyclization of gem-dibromoolefins for the synthesis of 2-bromobenzofurans(thiophenes)

Chen, Wei,Zhang, Yicheng,Zhang, Lei,Wang, Min,Wang, Lei

supporting information; experimental part, p. 10476 - 10478 (2011/10/31)

A highly efficient tetra-(n-butyl)ammonium fluoride (TBAF)-promoted intramolecular cyclization of gem-dibromoolefins has been developed for the synthesis of 2-bromobenzofused heterocycles. The reaction provides a convenient approach to 2-bromobenzofurans(

Intramolecular cross-coupling of gem-dibromoolefins: A mild approach to 2-bromo benzofused heterocycles

Newman, Stephen G.,Aureggi, Valentina,Bryan, Christopher S.,Lautens, Mark

supporting information; experimental part, p. 5236 - 5238 (2010/01/31)

Highly useful halogenated benzofurans and benzothiophenes are prepared from readily available gem-dibromoolefins using a mild, ligand-free copper catalyzed cross-coupling procedure.

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