Organic compounds -- part of the class 532-570 series – Organic compounds – Phosphorus containing
Patent
1997-07-01
1998-07-07
Geist, Gary
Organic compounds -- part of the class 532-570 series
Organic compounds
Phosphorus containing
C07F 950
Patent
active
057771693
ABSTRACT:
(1) Alkali metal diarylphosphides are formed by mixing triarylphosphine with, and preferably introducing triarylphosphine into, a two-phase mixture one or more alkali metals, preferably a mixture or alloy of sodium and potassium, in an anhydrous organic liquid diluent in the presence of molecular hydrogen. (2) To form a cycloalkyldiarylphosphine, at least a portion of the reaction mixture formed as in (1) (or alkali metal diarylphosphide recovered therefrom) and cycloalkyl mesylate or tosylate are mixed together and maintained under suitable reaction conditions. Reaction (2) is driven by the presence of residual sodium from reaction (1). Conduct of reaction (2) under a hydrogen atmosphere suppresses undesirable side reactions.
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Layman, Jr. William J.
Welsh George W.
Albemarle Corporation
Geist Gary
Pippenger Philip M.
Vollano Jean F.
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