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91703-34-3

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91703-34-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91703-34-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,0 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91703-34:
(7*9)+(6*1)+(5*7)+(4*0)+(3*3)+(2*3)+(1*4)=123
123 % 10 = 3
So 91703-34-3 is a valid CAS Registry Number.

91703-34-3SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name Phenol, 2-(2,2-dibromoethenyl)-

1.2 Other means of identification

Product number -
Other names 2-(2,2-Dibromovinyl)phenol

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:91703-34-3 SDS

91703-34-3Relevant articles and documents

Palladium-Catalyzed Domino Cyclization/Phosphorylation of gem-Dibromoolefins with P(O)H Compounds: Synthesis of Phosphorylated Heteroaromatics

Chen, Chen,Ding, Jie,Liu, Liying,Huang, Yujie,Zhu, Bolin

supporting information, p. 200 - 205 (2021/10/29)

We presented a palladium-catalyzed domino cyclization/phosphorylation of gem-dibromoolefins, which utilize H-phosphinates and secondary phosphine oxides as the phosphine sources, respectively. A variety of phosphorylated heteroaromatics were obtained in m

Copper-catalyzed synthesis of 1-(2-benzofuryl)-N-heteroarenes fromo-hydroxy-gem-(dibromovinyl)benzenes and N-heteroarenes

Rao, Maddali L. N.,Islam, Sk Shamim

supporting information, p. 9076 - 9080 (2021/11/04)

An efficient method for the synthesis of 1-(2-benzofuryl)-N-heteroarenes is developed fromo-hydroxy-gem-(dibromovinyl)benzenes and N-heteroarenes under copper-catalyzed tandem reaction conditions. This methodology displayed a broad substrate scope and high yields in the preparation of a variety of 1-(2-benzofuryl)-N-heteroarenes. Further, 1-(2-benzofuryl)-N-heteroarenes were also applied in the synthesis of polycyclic benzofuro-indolo-pyridine scaffolds under palladium-catalyzed dehydrogenative coupling conditions. Overall, the present tandem approach is general, synthetically advantageous and avoids air-sensitive reagents.

Rapid Access to Benzofuran-Based Natural Products through a Concise Synthetic Strategy

Rao, Maddali L. N.,Murty, Venneti N.

, p. 2177 - 2186 (2016/05/09)

A concise strategy is described for the synthesis of ailanthoidol (1), egonol (2), homoegonol (3), demethoxyegonol (4), demethoxyhomoegonol (5), and stemofuran A (6). This approach involves a Pd-catalysed domino cyclization/coupling process using triarylbismuth reagents for the generation of the benzofuran core. Subsequent structural modifications then give the final targets. The high yielding synthesis of the recently isolated natural products egonol-9(Z)-12(Z)-linoleate (2a), 7-demethoxyegonol-9(Z)-12(Z)-linoleate (4a), and 7-demethoxy-egonol-9(Z)-oleate (4b) are also reported.

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