103280-51-9Relevant academic research and scientific papers
Reaction of an alkynyllithium reagent with boron trifluoride: The structure of a likely intermediate in alkynyl anion chemistry
Davies, John E.,Raithby, Paul R.,Snaith, Ronald,Wheatley, Andrew E. H.
, p. 1797 - 1798 (1997)
Lithium phenylacetylide reacts with 1 equiv. of BF3·OEt2 in thf-toluene to yield both a thf adduct of tris(phenylacetylido)borane 2, which is probably the true intermediate in RC≡CLi/BF3-promoted alkynyl anion chemistry, and LiBF4, products which are considered to form via sequential LiF elimination from previously proposed acetylidoborate intermediates; complex 2 is the first structurally characterised tris(alkynyl)borane and in the solid state it forms an unusual hydrogen-bonded dimer.
