Process for preparing tertiary phosphines

Details Process for preparing tertiary phosphines Process for preparing tertiary phosphines

2007-06-05

2010-12-07

Price, Elvis O (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Boron containing

C568S009000, C556S007000, C556S023000, C556S051000

Reexamination Certificate

active

07847126

ABSTRACT:
The invention relates to a process for synthesizing tertiary phosphines by reacting halophosphines with organomagnesium compounds in the presence of copper compounds and optionally of salts.

REFERENCES:
patent: 3499039 (1970-03-01), Lorenz et al.
patent: 4668823 (1987-05-01), Murray
patent: 6335471 (2002-01-01), Eastham et al.
Tomori, H. et al: “An Improved Synthesis11-19,21, of Functionalized Biphenyl-Based Phosphine 23 Ligands” Journal of Organic Chemistry (2000), 65(17), 5334-5341, 2000, XPO02248873 Tabelle 1.
Kaye, S. et al: “The use of catalytic amounts of CuCl and other improvements in the benzyne route to biphenyl-based phosphine ligands” Advanced Synthesis & Catalysis (2001), 343(8), 789-794, 2001, XPOOI161250 das gauze Dokument.
Schmidbauer H. et al.: “Extreme sterische Hinderung: Synthese and Strunktur des Tetra (tert-butyl) phosphonium Kations—ein Fall von T-Symmetrie” Chemische Berichte., Bd. 113, Nr. 4, 1980, Seiten 1612-1622, XPO02248874 Verlag Chemie GMBH. Weinheim., DE ISSN: 0009-2940 Seite 1613, unten; Seite 1614, Verbindung 5.
Dumont W.W. et al.: IIZinn(II)-halogenidKomplexe mit Tri-tert-butylphosphin und Tris(dimethylamino)phosphin Zeitschrift fur Anorganische und Allgemeine Chemie., Bd. 441, 1978, Seiten 86-92, XPOO1160738 Verlag Johann Ambrosius Barth. Leipzig., DD ISSN: 0044-2313 Verbindung der Formel VII.
Adv. Synth. Catal., (month unavailable) 2001, 343 (8), 789-794, Kaye et al “The Use of Catalytic Amounts of CuCl and Other Improvements in the Benzyne Route to Biphenyl-Based Phosphine Ligands”.
J. Am. Chem. Soc., (month unavailable) 2001, 123 (11), 2677-2678, Stambuli et al., “Screening of Homogeneous Catalysts by Fluorescence Resonance Energy Transfer. Identification of Catalysts for Room-Temperature Heck Reations”.

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