Catalytic Asymmetric Oxidation of Cyclic Dithioacetals: Highly Diastereo- and Enantioselective Synthesis of theS-Oxides by a Chiral Aluminum(salalen) Complex

2011 ◽  
Vol 133 (1) ◽  
pp. 56-61 ◽  
Author(s):  
Junichi Fujisaki ◽  
Kenji Matsumoto ◽  
Kazuhiro Matsumoto ◽  
Tsutomu Katsuki
Keyword(s):  
Enantioselective Synthesis ◽  
Asymmetric Oxidation ◽  
Catalytic Asymmetric

ChemInform Abstract: Synthesis of New Chiral Ligands Based on Thiophene Derivatives for Use in Catalytic Asymmetric Oxidation of Sulfides.

ChemInform ◽  
2011 ◽  
Vol 42 (31) ◽  
pp. no-no
Author(s):  
Yong-Chul Jeong ◽  
Dae-Jun Ahn ◽  
Woo-Sun Lee ◽  
Seung-Han Lee ◽  
Kwang-Hyun Ahn
Keyword(s):  
Chiral Ligands ◽  
Asymmetric Oxidation ◽  
Oxidation Of Sulfides ◽  
Thiophene Derivatives ◽  
Catalytic Asymmetric

scholarly journals Enantioselective synthesis of (−)-chloramphenicol via silver-catalysed asymmetric isocyanoacetate aldol reaction

2016 ◽  
Vol 14 (1) ◽  
pp. 93-96 ◽  
Author(s):  
Allegra Franchino ◽  
Pavol Jakubec ◽  
Darren J. Dixon
Keyword(s):  
Aldol Reaction ◽  
Enantioselective Synthesis ◽  
Asymmetric Aldol ◽  
Asymmetric Aldol Reaction ◽  
Catalytic Asymmetric

A concise synthesis of (−)-chloramphenicol, based on the catalytic asymmetric aldol reaction between 4-nitrobenzaldehyde and benzhydryl isocyanoacetate, is reported.

Metalloporphyrin catalysts for organic synthesis

2004 ◽  
Vol 08 (09) ◽  
pp. 1166-1171 ◽  
Author(s):  
Gérard Simonneaux ◽  
Pietro Tagliatesta
Keyword(s):  
Organic Synthesis ◽  
Enantiomeric Excess ◽  
Catalytic Reactions ◽  
Terminal Alkynes ◽  
Asymmetric Oxidation ◽  
Carbene Transfer ◽  
Catalytic Asymmetric ◽  
Chiral Systems ◽  
Metalloporphyrin Catalysts

Novel chiral systems for the catalytic asymmetric oxidation and cyclopropanation of olefins based on metalloporphyrins containing iron, ruthenium and manganese, have been recently introduced. High catalyst turnover numbers and sometimes high enantiomeric excess were observed. New catalytic reactions with metalloporphyrins have recently been reported; these are the olefination of aldehydes and cyclotrimerization of terminal alkynes. Dendrimers and polymers containing metalloporphyrins, have also been found to be efficient catalysts for oxidation and carbene transfer.

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