Tetrel and pnictogen functionalised propargylidynes†
Richard A.
Manzano, 
a
Anthony F.
Hill
*a
and
a
Anthony F.
Hill
*a
and
Abstract
The reaction of [W(![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/char_e002.gif)
CCCSiMe3)(CO)2(Tp*)] (Tp* = tris(dimethylpyrazolyl)borate) with AgNO3 affords {[W(CCCAg)-(CO)2(Tp*)][AgNO3]}n while [Hg{CCCW(CO)2(Tp*)}2] with nBuLi affords [W(CCCLi)(CO)2(Tp*)]. These anhydrous reagents allow the installation of main group elements (e.g., Si, Sn, Pb, P, As) as propargylidyne termini.
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