用三溴化苯基碲或二苯基二碲化物和溴的混合物在醇中处理烯烃,以公平到良好的收率得到(β-烷氧基烷基)苯基二溴化碲(烯烃的烷氧基化)。各种aryltellurium三氯化物,diphenylditelluride /的CuCl 2,和phenyltellurocyanate /氯化亚铜2可用于的(β-烷氧基烷基)aryltellurium二氯化物的制备。在四氢呋喃水溶液或叔丁醇水溶液中的类似反应导致形成相应的β-羟基化合物(烯烃的羟基纤溶)。该反应是反式中的情况下,立体有择的顺式-2-丁烯和顺式-和反式在检查的所有末端烯烃(1-己烯,1-辛烯,1-癸烯,苯乙烯,α-甲基苯乙烯,2-甲基-1-戊烯和异丁烯)的情况下,-4-辛烯和区域专一性,碲物种侵蚀了末端仅碳。通过还原剂,例如水溶液中的N 2 H 4,Na 2 S,Na 2 S 2 O 3和NaHSO 4,将生成的二卤化二有机基碲化二氢还原为相
New aspects of the telluroxide elimination: a facile elimination of sec-alkyl phenyl telluroxide leading to olefins, allylic alcohols, and allylic ethers
作者:Sakae Uemura、Shinichi Fukuzawa
DOI:10.1021/ja00347a039
日期:1983.5
to the formation of linear olefins, more preference for elimination toward the less substituted carbon was observed than the selenoxide and sulfoxide eliminations. In the cyclododecyl case only trans-cyclododecene was formed as an olefin componenet in a sharp constrast to the selenoxide elimination that affords a 1:1 mixture of cis and trans isomers. On the contrary, in the n-alkyl and cyclohexyl cases
Tetraorganotin compounds react with telluriumtetrachloride or telluriumtetrabromide with formation of the corresponding organotellurium trihalides and diorganotellurium dihalides. 125Te NMR spectra of the reaction mixtures are used to determine the reaction products.
四有机锡化合物与四氯化碲或四溴化碲反应,形成相应的有机卤化三碲和二卤化二有机碲。反应混合物的125 Te NMR光谱用于确定反应产物。
Stereoselective synthesis of (Z)- or (E)-β-bromovinyl tellurides and their application in the synthesis of trisubstituted alkenes
作者:Xian Huang、Ya-Pin Wang
DOI:10.1016/0040-4039(96)01615-2
日期:1996.10
Reaction of aryltellurium tribromides with alkynes in methanol affords (E)-β-bromovinyl aryltellurium dibromides and in benzene gives the (Z)-isomer, which can be reduced by sodium borohydride to yield (Z) or (E)-β-bromovinyl tellurides respectively.
4-MeOC6H4, 4-BuOC6H4, 4-PhOC6H4, 2-naphthyl; X = Cl, Br) with a palladium(II) salt in acetonitrile at 25°C affords, in good yields (29–78%), the corresponding biaryls (ArAr) either in the atmosphere or under 1 atm CO. The presence of CO accelerates this aromatic coupling significantly to produce some active palladium carbonyl species, the formation of which was confirmed by IR spectroscopy of Li2PdCl4 in
aryltellurium三卤化物(抽纱的治疗3:Ar为PH,4- BRC 6 ħ 4,4-MEC 6 ħ 4,4-MeOC 6 H ^ 4,4-BuOC 6 ħ 4,4-PhOC 6 ħ 4,2-萘基; X = Cl,Br)和钯(II)盐在25°C的乙腈溶液中,可在大气中或低于1个大气压的条件下,以良好的收率(29-78%)提供相应的联芳基(ArAr)。的CO大大加速了这种芳族偶联,从而产生了一些活性的羰基钯物种,其形成已通过Li 2 PdCl 4的红外光谱证实在乙腈溶液中于一氧化碳; (Pd = C = O)物种的ν(C = O)分别在2140和1908 cm -1处显示出强烈的尖锐吸收和较弱的尖锐吸收。反应后用碱处理对于产生联芳基是必不可少的。
Synthesis of dihalogenidoindium(III) ions by halide transfer involving tellurium compounds in the presence of hard and soft ligands
作者:Clovis Peppe、Melina de Azevedo Mello、Thomaz Arruda Wioppiold、Ernesto Schulz Lang
DOI:10.1016/j.jorganchem.2012.07.037
日期:2012.11
, trans-[InBr2(OPPh3)4][PhTeBr4], cis-[InBr2(dmso)4][PhTeBr4] and cis-[InBr2(1,10-phen)2][PhTeBr4]. These complexes contain indium(III) and tellurium(IV) stabilized by hard and soft ligands. We have also discussed the facile tendency of the tellurium atoms to exchange their oxidation levels as well as the influence of the size of the ligands on the stereochemistry of the indium complexes.