Metal alkoxides: models for metal oxides. 4. Alkyne adducts of ditungsten hexaalkoxides and evidence for an equilibrium between dimetallatetrahedrane and methylidynemetal complexes: W2(.mu.-C2H2) .dblharw. 2W.tplbond.CH
Metal alkoxides models for metal oxides. 5. Coupling of alkyne ligands in reactions involving ditungsten hexaalkoxides: an alternative to the metathesis reaction M.tplbond.M + C.tplbond.C- .fwdarw. 2M.tplbond.C
作者:Malcolm H. Chisholm、David M. Hoffman、John C. Huffman
DOI:10.1021/ja00334a056
日期:1984.10
The C-C couplingreactionsinvolving W/sub 2/(..mu..-C/sub 2/R/sub 2/) compounds in the reactions with alkynes and nitriles have been studied. Results of crystal structure, molecular structure, and NMR studies are reported. A comparison of the reactions of this type of compounds with that of Mo/sub 2/(OR)/sub 2/ is made, but the C-C couplingreaction is not noted for the Mo compound.
已经研究了涉及 W/sub 2/(..mu..-C/sub 2/R/sub 2/) 化合物与炔烃和腈反应的 CC 偶联反应。报告了晶体结构、分子结构和核磁共振研究的结果。对这类化合物的反应与 Mo/sub 2/(OR)/sub 2/ 的反应进行了比较,但没有注意到 Mo 化合物的 CC 偶联反应。