efficient one-pot synthesis of a variety of functionalized diaryltellurium dicarboxylates. The method is based on a mild photosensitized oxygenation of cheap and readily available carboxylic acids. The molecular structures of the diaryltellurium dicarboxylates were determined unambiguously using single-crystal X-ray diffraction analysis. The thus obtained diaryltellurium dicarboxylates were used to study
本文介绍了一种简洁高效的一锅法合成多种官能化二芳基碲二羧酸盐的方法。该方法基于廉价且容易获得的羧酸的温和光敏氧化。使用单晶 X 射线衍射分析明确地确定了二芳基碲二羧酸盐的分子结构。如此获得的二芳基碲二羧酸盐用于研究安息香衍生物的氧化。
Secondary bonding. Part 13. Aryl-tellurium(<scp>IV</scp>) and -iodine(<scp>III</scp>) acetates and trifluoroacetates. The crystal and molecular structures of bis-(p-methoxyphenyl)tellurium diacetate, µ-oxo-bis[diphenyltrifluoroacetoxytellurium] hydrate, and [bis(trifluoroacetoxy)iodo]benzene
作者:Nathaniel W. Alcock、W. David Harrison、Colin Howes
DOI:10.1039/dt9840001709
日期:——
The crystal and molecularstructures of the title compounds have been determined from diffractometer data by the heavy-atom method, and their preparations are described. Crystals of (p-MeOC6H4)2Te(O2CMe)2(1) are monoclinic, space group P21/c, with unit-cell dimensions a= 9.529(2), b= 11.984(2), c= 17.035(2)Å, β= 101.70(2)°, Z = 4, and for 3 033 observed reflections [I/σ(I) > 3.0], R= 0.022. Crystals
Diaryltellurium diacetates have been prepared in excellent yields by the oxidation of diaryltellurides with leadtetraacetate and also by the reaction of diaryltellurium dichlorides with silver acetate. Hydrolysis, reduction and exchange reactions of these derivatives and their spectral data are described.
A Convenient and General Preparation of Diphenyl Tellurium Dicarboxylates
作者:Seizo Tamagaki、Isao Hatanaka、Seizi Kozuka
DOI:10.1246/bcsj.50.2501
日期:1977.9
A number of diphenyl tellurium dicarboxylates were readily prepared from diphenyl telluroxide and carboxylic acids or anhydrides. Some of them were also derived through the carboxylate exchange from readily available tellurium carboxylates.
organic tellurium compounds was carried out in the presence of fluoride ions and difluorination occurred at the tellurium atom selectively in excellent yields and with high current efficiencies regardless of their structures. This is the first example of anodic fluorination of tellurides and also that of electrosynthesis of hypervalent tellurides.