K. H. Shaughnessy, Samira Samaali, F. Pinsonneault
Sep 21, 2015
Citations
0
Influential Citations
0
Citations
Journal
Journal name not available for this finding
Abstract
[131274-22-1] C12H28BF4P (MW 290.13) InChI = 1S/C12H27P.BF4/c1-10(2,3)13(11(4,5)6)12(7,8)9;2-1(3,4)5/h1-9H3;/q;-1/p+1 InChIKey = YTJUCJAUJCXFTN-UHFFFAOYSA-O (ligand precursor for palladium-catalyzed cross-coupling reactions) Physical Data: mp 261 °C (decomposes). Solubility: soluble in methylene chloride, chloroform; slightly soluble in THF; insoluble in hexane, toluene, and water. Form Supplied: white powder; widely available. Analysis of Reagent Purity: by NMR spectroscopy. 1H NMR (CDCl3): δ 6.07 (d, 1JPH = 465 Hz, 1H), 1.65 ppm (d, 3JPH = 15.3 Hz, 27H); 31P{1H} NMR (CDCl3): δ 51.7 ppm. Preparative Methods: addition of HBF4 to a solution of tri-tert-butylphosphine in methylene chloride. Separation of the organic layer and removal of the solvent gives analytically pure tri-tert-butylphosphonium tetrafluoroborate.1 Handling, Storage, and Precautions: tri-tert-butylphosphonium tetrafluoroborate is indefinitely stable as a solid and in solution and requires no special handling. This compound is considered non-hazardous. Protection from oxygen is required in the presence of base, as the highly air-sensitive tri-tert-butylphosphine will be formed.