37438-18-9

Basic information

• Product Name: 1-Bromo-4-[(4-bromophenyl)tellanyl]benzene
• Synonyms: 1-Bromo-4-[(4-bromophenyl)tellanyl]benzene
• CAS NO: 37438-18-9
• Molecular Formula: C₁₂H₈Br₂Te
• Molecular Weight: 439.59992
• Mol File: 37438-18-9.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1-Bromo-4-[(4-bromophenyl)tellanyl]benzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-Bromo-4-[(4-bromophenyl)tellanyl]benzene(37438-18-9)
• EPA Substance Registry System: 1-Bromo-4-[(4-bromophenyl)tellanyl]benzene(37438-18-9)

Safety Data

• Hazardous Substances Data: 37438-18-9(Hazardous Substances Data)

Upstream product

• 36898-45-0 bis(4-bromophenyl)tellurium dichloride 
• 589-87-7 1,4-bromoiodobenzene 
• 5467-74-3 4-Bromophenylboronic acid 
• 77443-99-3 di telluroxide 
• 108-86-1 bromobenzene 
• 589-21-9 (4-bromophenyl)hydrazine 
• 106-40-1 4-bromo-aniline 
• 673-40-5 4-bromobenzenediazonium tetrafluoroborate 

Downstream Products

• 92-86-4 4-(4-bromophenyl)bromobenzene 
• 13041-70-8 (E)-4-bromostilbene 
• 77443-99-3 di telluroxide 
• 2294-43-1 1-allyl-4-bromo-benzene 
• 1585-07-5 1-bromo-4-ethylbenzene 
• 64723-47-3 Bis(p-bromphenyl)diisothiocyanatotellur 
• 36898-45-0 bis(4-bromophenyl)tellurium dichloride 
• 63971-89-1 bis-(4-bromo-phenyl)-diiodo-λ⁴-tellane 
• 63971-88-0 di(4-bromophenyl)tellurium dibromide 

Relevant articles and documents

Carbon-carbon bond forming reactions via Pd-catalyzed detellurative homocoupling of diorganyl tellurides

A simple and highly efficient method for the constructions of Csp-Csp, Csp2-Csp2 and Csp3-Csp3 bonds is reported. The symmetrical diaryl tellurides undergo detellurative homocouplings to afford symmetrical biaryl products. The reactions are carried out at ambient temperature using PdCl2 as a catalyst in the presence of Ag2O and Na2CO3. Similarly, the detellurative homocouplings of dibenzyl telluride and bis(phenylethynyl)telluride give bibenzyl and the conjugated diyne, respectively.

Diarylation of chalcogen elements using arylboronic acids via copper- or palladium-catalyzed oxidative coupling

Transition metal-catalyzed diarylations of sulfur, selenium and tellurium were achieved using arylboronic acids in air. A copper-catalyzed reaction of sulfur or selenium efficiently yielded numerous symmetrical diaryl sulfides or selenides in the presence of NH4BF4. However, the diarylation of tellurium was not possible using this method, and required a palladium catalyst in the presence of KI and air for the reaction to proceed.

Deoxygenation of sulfoxides, selenoxides, telluroxides, sulfones, selenones and tellurones with Mg-MeOH

The deoxygenation of a variety of sulfoxides, selenoxides, telluroxides, sulfones, selenones and tellurones has been reported with Mg-MeOH at room temperature in nearly quantitative yields. The deoxygenation is proposed to proceed by SET from Mg to the substrate.

Reduction of diaryltellurium dichlorides with samarium diiodide

Samarium diiodide reduces diaryltellurium dichlorides to the corresponding diaryl tellurides in moderate to good yields under mild and neutral conditions.

Convenient synthesis of diaryl tellurides

Diaryl tellurides 5 are prepared by two synthetic routes: a) a one-pot procedure using elemental tellurium (1), diethyl phosphite (2) and sodium hydride in ethanol, followed by treatment with arenediazonium fluoroborates 4; b) treatment of sodium telluride (6) with arenediazonium fluoroborates 4 in dimethylformamide. In both cases, good yields are obtained.

A convenient method for the preparation of diaryl tellurides and diaryl selenides

Sodium hydrogen telluride or selenide reacts rapidly with aryldiazonium fluoborates to give the corresponding symmetric diaryl tellurides or selenides.

Tellurium in Organic Synthesis, IX Oxidation of Some Nitrogenous Compounds with TeO2

Some phenylhydrazines were readily converted to diaryltellurium dichlorides in 27-40percent yield when treated with TeO2 in refluxing acetic acid containing lithium chloride.It was also found that certain ketones could be regenerated from their corresponding semicarbazones, azines and hydrazones when submitted to the same reaction conditions. - Keywords: Tellurium, Phenylhydrazines