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This page will focus on asymmetric synthesis methodology, and latest chiral catalysts.
A. Chiral Catalysts
CBS Catalysts:
-(+)-2-Methyl-CBS-oxazaborolidine.gif)
-(+)-o-Tolyl-CBS-oxazaborolidine.gif)
-(-)-2-Methyl-CBS-oxazaborolidine.gif)
-(-)-o-Tolyl-CBS-oxazaborolidine.gif)
COP-Cl Catalyst
Metallophosphite (Enantioselective Cross silyl benzoin reaction)
Asymmetric Hydrogenation Catalysts
Crabtree's Catalyst Pfaltz's Phosphine-oxazoline Burgess' Carbene-oxazoline
 Organic Letters, 2004, 6, 12, 2023; Angew. Chem. Int. Ed. 2005, 44, 4209 has examples for acid functional group rather than hydroxyl. |
 Organic Letters, 2004, 6, 20, 3645 |
 Organic Letters, 2005, 7, 19, 4177; J. Org. Chem. 2005, 70, 943 Has more example for PipPhos and MorfPhos. |
 Organic Letters, 2004, 6, 20, 3585 |
Asymmetric Epoxidation Catalysts
 J. Org. Chem. 2005, 70, 2904, Latest paper published by Shi's group. |
 J. Am. Chem. Soc. 2005, 127, 6964 |
B. Chiral Ligands
Josiphos Walphos Mandyphos Taniaphos Solvias P-N
ChiralQuest Phosphines
-C3-Tunephos.gif)
-(+)-MeO-BIPHEP.gif)
-(+)-Cl-MeO-BIPHEP.gif)
-(-)-MeO-BIPHEP.gif)
-(-)-Cl-MeO-BIPHEP.gif)
(R)-C3-Tunephos (R)-(+)-MeO-BIPHEP (R)-(+)-Cl-MeO-BIPHEP (S)-(-)-MeO-BIPHEP (S)-(-)-Cl-MeO-BIPHEP
-(+)-BINAP.gif)
-BINOL.gif)
-BINOL 2.gif)
-BINOL 3.gif)
-BINOL ether 1.gif)
-BINOL ether 2.gif)
-BINOL Sulfonate.gif)
-(-)-BINAP.gif)
-(-)-BINOL.gif)
-(-)-BINOL 2.gif)
-(-)-BINOL ether 1.gif)
-(-)-BINOL ether 2.gif)
-(-)-BINOL Sulfonate.gif)
C. Chiral Auxiliaries
Amides used as auxiliaries.
   
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Oxazolidines and Carbamates uses as auxiliaries.
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Esters used as auxiliaries.
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D. Chiral Separation
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