Invention Grant
- Patent Title: Chiral tertiary aminoalkylnaphthols
- Patent Title (中): 手性叔氨基烷基萘酚
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Application No.: US11578708Application Date: 2005-05-11
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Publication No.: US07674900B2Publication Date: 2010-03-09
- Inventor: Albert Sun-Chi Chan , Gang Chen , Rongwei Guo , Jing Wu
- Applicant: Albert Sun-Chi Chan , Gang Chen , Rongwei Guo , Jing Wu
- Applicant Address: HK Hung Hom, Kowloon
- Assignee: The Hong Kong Polytechnic University
- Current Assignee: The Hong Kong Polytechnic University
- Current Assignee Address: HK Hung Hom, Kowloon
- Agent Sandra S. Shim
- International Application: PCT/CN2005/000654 WO 20050511
- International Announcement: WO2005/108377 WO 20051117
- Main IPC: C07F9/6544
- IPC: C07F9/6544

Abstract:
The present invention provides bipyrimidinyl diphosphine compounds of the formula wherein R is optionally substituted alkyl, cycloalkyl, aryl or heteroaryl; R′ and R″ are independently optionally substituted alkyl, cycloalkyl, aryl or heteroaryl; or an enantiomer thereof; or an enantiomeric mixture thereof. The compounds of the formula (I) are chiral atropisomeric bipyrimidinyl diphosphine compounds and, thus, may be employed as ligands to generate chiral transition metal catalysts which may be applied in a variety of asymmetric reactions, e.g., in palladium catalyzed asymmetric allylic substitution reactions. The compounds of the present invention are easily accessible in high enantiomeric purity according to the methods disclosed herein.
Public/Granted literature
- US20070225497A1 Chiral Tertiary Aminoalkylnaphthols Public/Granted day:2007-09-27
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