Preparation and lithiation of optically active 2,2'-dihalo-1,1'-binaphthyls. A general strategy for obtaining chiral, bidentate ligands for use in asymmetric synthesis

1984 ◽  
Vol 106 (17) ◽  
pp. 4717-4723 ◽  
Author(s):  
Kenneth J. Brown ◽  
Matthew S. Berry ◽  
Kenneth C. Waterman ◽  
David Lingenfelter ◽  
Joseph R. Murdoch
Keyword(s):  
Asymmetric Synthesis ◽  
Optically Active ◽  
General Strategy ◽  
Bidentate Ligands

Central–axial–central chirality transfer: asymmetric synthesis of highly substituted indenes bearing a stereogenic quaternary carbon center from optically active propargyl alcohols

2015 ◽  
Vol 51 (2) ◽  
pp. 380-383 ◽  
Author(s):  
Masahiro Egi ◽  
Kaori Shimizu ◽  
Marin Kamiya ◽  
Yuya Ota ◽  
Shuji Akai
Keyword(s):  
Asymmetric Synthesis ◽  
Optically Active ◽  
Quaternary Carbon ◽  
Chirality Transfer ◽  
Propargyl Alcohols

An asymmetric synthesis of highly substituted indenes has been developed via the central–axial–central chirality transfer from optically active propargyl alcohols.

Asymmetrische Katalysen, 25 [1]. C5H5Mn(CO)2-Komplexe von optisch aktiven Chelatphosphanen als einzähnige Liganden in der enantioselektiven Katalyse / Asymmetric Catalyses, 25 [1]. C5H5Mn(CO)2 Complexes of Optically Active Chelate Phosphanes as Monodentate Ligands in Enantioselective Catalysis

1985 ◽  
Vol 40 (10) ◽  
pp. 1243-1249 ◽  
Author(s):  
Henri Brunner ◽  
Alfons Knott
Keyword(s):  
Cinnamic Acid ◽  
Enantioselective Hydrogenation ◽  
Optically Active ◽  
Enantioselective Catalysis ◽  
Dinuclear Complexes ◽  
Bidentate Ligands ◽  
Monodentate Ligand ◽  
Mononuclear Complexes ◽  
Monodentate Ligands

The chelate phosphanes Diphos, Diop, and Norphos were reacted with C5H5Mn(CO)2THF and CH3C5H4Mn(CO)2THF to give mononuclear complexes, containing the phosphanes as unidentate or as bidentate ligands, and dinuclear complexes, containing bridging phosphane ligands. In C5H5Mn(CO)2Diop one of the two P(C6H5)2 groups of Diop is coordinated to the C5H5Mn(CO)2 fragment; the uncoordinated P(C6H5)2 group makes it a monodentate ligand. C5H5Mn(CO)2Diop together with [Rh(cod)Cl]2 was used as an in situ catalyst in the enantioselective hydrogenation of (Z)-a-[N -acetam ino]cinnamic acid (78.4% ee) and in the enantioselective hydrosilylation of acetophenone with diphenylsilane (6.7% ee).

Asymmetric synthesis of optically active 6-thiaestrogens

2010 ◽  
Vol 91 (7) ◽  
pp. 861-868 ◽  
Author(s):  
W. M. B. Könst ◽  
W. N. Speckamp ◽  
H. O. Houwen ◽  
H. O. Huisman
Keyword(s):  
Asymmetric Synthesis ◽  
Optically Active

ASYMMETRIC SYNTHESIS VIA POLYMER-ATTACHED OPTICALLY ACTIVE CATALYSTS

1980 ◽  
Vol 333 (1 Transition Me) ◽  
pp. 35-44 ◽  
Author(s):  
J. K. Stille ◽  
S. J. Fritschel ◽  
N. Takaishi ◽  
T. Masuda ◽  
H. Imai ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Optically Active

Asymmetric synthesis of optically active lactones from cyclic acid anhydrides using lipase in organic solvents.

1988 ◽  
Vol 52 (12) ◽  
pp. 3087-3092 ◽  
Author(s):  
Yukio YAMAMOTO ◽  
Kazuyoshi YAMAMOTO ◽  
Takaaki NISHIOKA ◽  
Jun''ichi ODA
Keyword(s):  
Asymmetric Synthesis ◽  
Organic Solvents ◽  
Optically Active ◽  
Cyclic Acid ◽  
Acid Anhydrides
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