Enantioselective synthesis of trifluoromethyl substituted cyclohexanones via an organocatalytic cascade Michael/aldol reaction

2020 ◽  
Vol 18 (8) ◽  
pp. 1607-1611 ◽  
Author(s):  
Hongzhou Yang ◽  
Qingqing Wang ◽  
Yuan Luo ◽  
Ling Ye ◽  
Xinying Li ◽  
...  
Keyword(s):  
Aldol Reaction ◽  
Enantioselective Synthesis ◽  
Ring Closure ◽  
Cinchona Alkaloid ◽  
Primary Amines

An enantioselective Michael-initiated ring-closure process was established to construct β-CF3-cyclohexanones or β-CF3-cyclohexenones with cinchona alkaloid-based primary amines.

A novel enantioselective synthesis of 6H-dibenzopyran derivatives by combined palladium/norbornene and cinchona alkaloid catalysis

2015 ◽  
Vol 13 (8) ◽  
pp. 2260-2263 ◽  
Author(s):  
Di Xu ◽  
Li Dai ◽  
Marta Catellani ◽  
Elena Motti ◽  
Nicola Della Ca’ ◽  
...  
Keyword(s):  
Catalytic System ◽  
Enantioselective Synthesis ◽  
Cinchona Alkaloid ◽  
System P ◽  
First Time

Chiral dibenzopyran derivatives were obtained by cinchona alkaloid, as organocatalyst, in combination, for the first time, with palladium/norbornene catalytic system.

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.

Enantioselective Synthesis of Bicyclic Tetrahydrofuran Carboxaldehydes from Chiral 3-Stannylbut-1-enyl Carbamates by Tandem Homoaldol/Aldol Reaction

Synthesis ◽  
1996 ◽  
Vol 1996 (01) ◽  
pp. 145-148 ◽  
Author(s):  
Holger Paulsen ◽  
Claudia Graeve ◽  
Roland Fröhlich ◽  
Dieter Hoppe
Keyword(s):  
Aldol Reaction ◽  
Enantioselective Synthesis

scholarly journals Organocatalytic Asymmetric Aldol Reaction of Arylglyoxals and Hydroxyacetone: Enantioselective Synthesis of 2,3-Dihydroxy-1,4-diones

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 648
Author(s):  
Yu-Hao Zhou ◽  
Yu-Zu Zhang ◽  
Zhu-Lian Wu ◽  
Tian Cai ◽  
Wei Wen ◽  
...  
Keyword(s):  
Primary Amine ◽  
Aldol Reaction ◽  
Enantioselective Synthesis ◽  
Asymmetric Aldol ◽  
Highly Efficient ◽  
Asymmetric Aldol Reaction ◽  
Aldol Addition ◽  
High Yields

A highly efficient quinine-derived primary-amine-catalyzed asymmetric aldol addition of hydroxyacetone to arylglyoxals is described. Structurally diverse anti-2,3-dihydroxy-1,4-diones were generated in high yields, with good diastereoselectivities and enantioselectivities.

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