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http://hdl.handle.net/10397/74
| Title: | Biphenyldiphosphine compounds | Authors: | Chan, ASC Qiu, L |
Issue Date: | 22-Aug-2006 | Source: | US Patent 7,094,725 B2. Washington, DC: US Patent and Trademark Office, 2006. | Abstract: | The present invention provides compounds of the formula (I) [refer to Patent file] wherein R is optionally substituted lower alkyl, cycloalkyl or aryl; R' is alkyl or aryl; n is zero or an integer of 1 or 2; or an enantiomer thereof; or an enantiomeric mixture thereof. The compounds of formula (I) are bridged C₂-symmetric biphenyldiphosphine analogs and, thus, may be employed as ligands to generate chiral transition metal catalysts which may be applied in a variety of asymmetric reactions. The compounds of the present invention are easily accessible in high diastereomeric and optical purity according to the methods disclosed herein. | Keywords: | Biphenyldiphosphine compounds | Rights: | Assignee: The Hong Kong Polytechnic University. |
| Appears in Collections: | Patent |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| us007094725b2.pdf | 1.16 MB | Adobe PDF | View/Open |
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