US Patent 7994355 Metallocene-based chiral phosphine or arsine ligands
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Patent abstract
The present invention relates to metallocene-based phosphine ligands having chirality at phosphorus and at least one other element of chirality (planar chirality and/or chirality at carbon); and to the use of such ligands in asymmetric transformation reactions to generate high enantiomeric excesses of formed compounds. A method for the preparation of ligands according to the invention involving the conversion of the ortho-lithiated substituted metallocene to a phosphine chiral at phosphorus is also disclosed.
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US Patent 07994355 Metallocene-based chiral phosphine or arsine ligands US Patent 7994355 Metallocene-based chiral phosphine or arsine ligands
Infobox
Patent Number
0799435500
Patent Number
799435500
Edits on 23 Apr, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
079943550
Date of Patent
August 9, 2011
0Patent Application Number
105862870
Date Filed
January 14, 2005
0Patent Primary Examiner
Edits on 28 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
079943550
Date of Patent
August 9, 2011
0Patent Application Number
105862870
Date Filed
January 14, 2005
0Patent Primary Examiner
Edits on 8 Dec, 2021
Golden AI
Edits made to:
Infobox (+7 properties)
US Patent 07994355 Metallocene-based chiral phosphine or arsine ligands
Infobox
Is a
Patent jurisdiction
Patent number
07994355
Date of patent
August 9, 2011
Patent application number
10586287
Date Filed
January 14, 2005
Patent primary examiner
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