Frogley Benjamin J, Hill Anthony F, Onn Chee S
Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory ACT 2601, Australia.
Dalton Trans. 2019 Aug 21;48(31):11715-11723. doi: 10.1039/c9dt02314c. Epub 2019 Jul 11.
The reaction of alkynylselenolatoalkylidynes [W([triple bond, length as m-dash]CSeC[triple bond, length as m-dash]CR)(CO)(Tp*)] (R = SiMe, SiPr, Ph, p-tolyl, Bu, CPh, SiPh, GePh; Tp* = hydrotris(3,5-dimethylpyrazol-1-yl)borate) with [AuCl(L)] (L = tetrahydrothiophene, SMe) readily furnishes heterobimetallic complexes [WAu(μ-CSeC[triple bond, length as m-dash]CR)Cl(CO)(Tp*)] where gold(i) chloride coordinates to the tungsten-carbon multiple bond. Alternatively, desilylation of the SiMe complex [W([triple bond, length as m-dash]CSeC[triple bond, length as m-dash]CSiMe)(CO)(Tp*)] in the presence of gold phosphine complexes [AuCl(PR')] (R' = Ph or Cy) furnishes the gold alkynyl derivatives, [W([triple bond, length as m-dash]CSeC[triple bond, length as m-dash]CAuPR')(CO)(Tp*)].
炔基硒醇烷基炔[W([三键，长度为m破折号]CSeC[三键，长度为m破折号]CR)(CO)(Tp*)]（R = SiMe、SiPr、Ph、对甲苯基、Bu、CPh、SiPh、GePh；Tp* = 氢三(3,5-二甲基吡唑-1-基)硼酸酯）与[AuCl(L)]（L = 四氢噻吩、SMe）反应容易生成异双核配合物[WAu(μ-CSeC[三键，长度为m破折号]CR)Cl(CO)(Tp*)]，其中氯化金(i)与钨-碳多重键配位。或者，在金膦配合物[AuCl(PR')]（R' = Ph或Cy）存在下，SiMe配合物[W([三键，长度为m破折号]CSeC[三键，长度为m破折号]CSiMe)(CO)(Tp*)]的去硅基化反应生成金炔基衍生物[W([三键，长度为m破折号]CSeC[三键，长度为m破折号]CAuPR')(CO)(Tp*)]。
