42368-15-0

Upstream product

• 108-95-2 phenol 
• 56-23-5 tetrachloromethane 
• 122182-97-2 C₁₁H₁₂Cl₂O₃Te 
• 1529-17-5 phenyltrimethylsilyl ether 

Downstream Products

• 122182-97-2 C₁₁H₁₂Cl₂O₃Te 
• 252051-92-6 4-hydroxyphenyl 4-(2-tetrahydropyranyloxy)phenyl telluride 
• 89484-70-8 C₁₈H₁₃Cl₃N₂OTe 
• 78823-96-8 p-hydroxyphenyltellurium tribromide 
• 78823-98-0 bis(p-hydroxyphenyl)tellurium dichloride 
• 92-69-3 4-Phenylphenol 

Relevant academic research and scientific papers

Novel Water-Soluble Diorganyl Tellurides with Thiol Peroxidase and Antioxidant Activity

Novel water-soluble diaryl tellurides, alkyl aryl tellurides, and dialkyl tellurides carrying sulfopropyl groups were prepared and found to possess potent peroxide decomposing and chain-breaking antioxidative capacity. The dilithium, disodium, dipotassium, and bis-tetramethylammonium salts of bis(4-hydroxyphenyl) telluride (4) were treated with 2.3 equiv of 1,3-propanesultone in aqueous tert-butyl alcohol to give the corresponding salts 5 of bis-O-sulfopropylated diaryl telluride. A variety of diaryl ditellurides were reduced with sodium borohydride in ethanol. Upon addition of propanesultone to the resulting sodium arenetellurolates, the corresponding 3-aryltellurenylpropanesulfonic acid sodium salts 8 were precipitated. Diphenyl diselenide and dibutyl ditelluride reacted similarly to afford the sodium salts of 3-benzeneselenenylpropanesulfonic acid (9) and 4-telluraoctanesulfonic acid (10), respectively. The glutathione peroxidase-like activity of the water-soluble compounds was assessed at pH = 7.4 by using the coupled GSSG reductase assay. Dialkyl telluride 10 turned out to be the most efficient catalyst. Several alkyl aryl tellurides 8 were also more efficient than any of the previously tested organotellurium compounds in this model. Bulky and electron-withdrawing aryl substituents seemed to reduce activity, whereas electron-donating groups enhanced it. Alkyl aryl selenide 9 was void of any catalytic activity. The novel compounds were also assessed by 1H NMR spectroscopy for their capacity to catalyze the hydrogen peroxide oxidation of N-acetylcysteine in D2O under acidic conditions. In the presence of 0.01 mol % of the organotellurium catalyst, the thiol concentration was reduced to 50% within 12 min for the most active catalyst (compound 5b). Although many of the compounds showed high catalytic activity, it was not possible to rationalize their relative efficiency. The capacity of the novel organotellurium compounds to act as a scavengers of 1,1-diphenyl-2-picrylhydrazyl (DPPH) was also investigated. The organotelluriums seem to act primarily as electron donors in their reaction with DPPH. Compounds 8d, 10, and 8b were the most effective scavengers. Bulky or electron-withdrawing aryl substituents caused a reduction in activity, whereas electron-donating ones enhanced it. None of the compounds could match vitamin E in their scavanging capacity.

Some organotellurium(iv) complexes of 1-methyl-3-(p-tolylimino)indolin-2-one schiff base

Six new hexa-coordinated organotellurium(IV) complexes of type RTeCl3 NMeIPT and R2TeCl2 NMeIPT (R = 4-hydroxyphenyl, 4- methoxyphenyl or 3-methy-4-hydroxyphenyl; NMeIPT(L) = Schiff base (1-methyl-3-(p-tolylimino)indolin-2-one) derived from condensation o

Studies on nickel(II) and palladium(II) complexes with some tetraazamacrocycles containing tellurium

The synthesis of 10-membered and 12-membered tellurium-containing tetraazamacrocyclic complexes of divalent nickel and palladium by template condensation of diaryltellurium dichlorides, (aryl = p-hydroxyphenyl, 4-hydroxy-3-methyl-phenyl, p-methoxyphenyl)

Study on some hydroxyaryltellurium(IV) trichlorides catalyzed knoevenagel reactions

Hydroxyaryltellurium trichlorides, R'TeCl3 (p-hydroxyphenyl and 3-methyl-4-hydroxyphenyl) have been prepared by condensation of tellurium tetrachloride with phenol or o-cresol respectively. These hydroxyaryltellurium trichlorides have been investigated as catalysts in Knoevenagel reactions between non-enolizable aldehydes and active methylene compounds to yield the corresponding olefinic products. This paper reports the reaction of ethylcyanoacetate,malononitrile and cyanoacetamide with aromatic aldehydes, ArCHO (Ar is C6H5, 4- ClC6H4, 4-CH3OC6H4 and C6H5-CH=CH). The products are obtained in excellent yield and high purity and have been identified by comparison of their properties with those of authentic samples.

Studies on 1,10-phenanthroline complexes of some hydroxyaryltellurium trihalides

The synthesis and structural features of some newly synthesized 1,10-phenanthroline complexes of p-hydroxyphenyl-and 3-methyl-4- hydroxyphenyltellurium trihalides (chlorides, bromides, and iodides) are reported. The resulting complexes have been subjected to elemental analyses, conductance and cryoscopic measurements, infra-red and proton magnetic resonance spectral studies. Solution studies reveal the weak to 1:1 electrolyte type behavior of these complexes in solution. Spectral studies indicate the linkage of phenanthroline to the tellurium atom through the nitrogen atoms. Central tellurium atom in these complexes is hexa-coordinated in an octahedral way. Copyright Taylor & Francis Group, LLC.

REACTIONS OF ACETYLACETONE WITH ORGANOTELLURIUM (IV) CHLORIDES-C1 BONDED ACETYLACETONATES OF TELLURIUM(IV)

The reactions of acetylacetone (AcAc) with ArTeCl3 (I), Ar2TeCl2 (II) and Ar3TeCl (III) (where Ar = phenyl, 4-hydroxyphenyl, 4-methoxyphenyl, 4-ethoxyphenyl, 3-methyl-4-hydroxyphenyl and 3,4-dihydroxyphenyl) have been investigated.The I gives ArTe(C5H7O2)Cl2 (IV) type derivatives but II and III do not react even on prolonged refluxing in the presence of anhydrous AlCl3.The structural features of the new acetonylacetone derivatives (IV) have been explored by IR, PMR, and CMR spectroscopy.The effect of phenyl ring substituents on the keto-enol tautomerism of IVhas been found to be minor.The bond formation between Te and C1 of AcAc and intramolecular secondary interaction between the oxygen of AcAc and Te have been inferred from spectral data.