Catalytic asymmetric conjugate addition of terminal alkynes to β-trifluoromethyl α,β-enones

2014 ◽  
Vol 50 (18) ◽  
pp. 2275-2278 ◽  
Author(s):  
Amparo Sanz-Marco ◽  
Andrea García-Ortiz ◽  
Gonzalo Blay ◽  
José R. Pedro
Keyword(s):  
Conjugate Addition ◽  
Terminal Alkynes ◽  
Catalytic Asymmetric

The first enantioselective conjugate alkynylation of β-trifluoromethyl α,β-enones using terminal alkynes and a taniaphos–Cu(i) complex as catalyst is described.

ChemInform Abstract: Catalytic Asymmetric Conjugate Addition of Terminal Alkynes to β-Trifluoromethyl α,β-Enones.

ChemInform ◽  
2014 ◽  
Vol 45 (24) ◽  
pp. no-no
Author(s):  
Amparo Sanz-Marco ◽  
Andrea Garcia-Ortiz ◽  
Gonzalo Blay ◽  
Jose R. Pedro
Keyword(s):  
Conjugate Addition ◽  
Terminal Alkynes ◽  
Catalytic Asymmetric

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.

ChemInform Abstract: Direct Catalytic Asymmetric Conjugate Addition of Saturated and Unsaturated Thioamides.

ChemInform ◽  
2015 ◽  
Vol 46 (45) ◽  
pp. no-no
Author(s):  
Nilanjana Majumdar ◽  
Akira Saito ◽  
Liang Yin ◽  
Naoya Kumagai ◽  
Masakatsu Shibasaki
Keyword(s):  
Conjugate Addition ◽  
Catalytic Asymmetric
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