Compounds of chiral aromatic spiroketal diphosphine ligands, preparation methods and uses thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 27, 2016
Grant Date -
Sep 10, 2015
app pub date -
Jan 29, 2013
filing date -
Jul 20, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed are aromatic spiroketal diphosphine ligands, preparation methods and uses thereof. The ligands have the structure of formula (I), in which R1, R2, R3, R4, R5, R6, R7, R8, X and n are defined as such described in the specification. The aromatic spiroketal diphosphine ligands are prepared from aromatic spiroketal compounds. Also disclosed are the preparation methods of aromatic spiroketal compounds. The preparation methods are simple and can produce racemic or chiral aromatic spiroketal diphosphine ligands. The ligands can be used as catalysts of asymmetrical catalytic reactions having economical practicability and industry application prospect
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully