Asymmetric Synthesis of the Tricyclic Core of NGF-Inducing Cyathane Diterpenes via a Transition-Metal-Catalyzed [5 + 2] Cycloaddition

2001 ◽  
Vol 3 (13) ◽  
pp. 2105-2108 ◽  
Author(s):  
Paul A. Wender ◽  
F. Christopher Bi ◽  
Michael A. Brodney ◽  
Francis Gosselin
Keyword(s):  
Transition Metal ◽  
Asymmetric Synthesis ◽  
Tricyclic Core ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Asymmetric synthesis to chiral organosilicon compounds via transition metal-catalyzed stereoselective C-H activation and silylation

2021 ◽  
Author(s):  
Ming Zhang ◽  
Shan Gao ◽  
Juan Tang ◽  
Ling Chen ◽  
Aihua Liu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Asymmetric Synthesis ◽  
Organosilicon Compounds ◽  
Feature Article ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

This feature article introduces the progress of transition metal-catalyzed stereoselective sp2 and sp3 C-H activation and silylation to synthesize chiral organosilicon compounds, the asymmetric C-H silylation includes intramolecular cyclizing silylation...

scholarly journals Manganese (I)-Catalyzed Access to 1,2-Bisphosphine Ligands

2022 ◽  
Author(s):  
Luo Ge ◽  
Syuzanna R Harutyunyan
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Asymmetric Synthesis ◽  
Noble Metals ◽  
Optically Active ◽  
Synthetic Routes ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Chiral bisphosphine ligands are of key importance in transition-metal-catalyzed asymmetric synthesis of optically active products. However, the transition metals typically used are scarce and expensive noble metals, while the synthetic routes...

Catalytic asymmetric synthesis of cyclopropylphosphonates — Catalysts' scope and reactivity

2005 ◽  
Vol 83 (6-7) ◽  
pp. 533-542 ◽  
Author(s):  
André B Charette ◽  
Jean-Emmanuel Bouchard
Keyword(s):  
Transition Metal ◽  
Asymmetric Synthesis ◽  
Copper Catalysts ◽  
Ruthenium Catalysts ◽  
Catalytic Asymmetric Synthesis ◽  
Reaction Proceeds ◽  
Transition Metal Catalyzed ◽  
Diazo Reagents ◽  
Metal Catalyzed ◽  
High Yields

The transition metal-catalyzed cyclopropanation of alkenes using α-diazomethylphosphonates leads to cyclopropylphosphonate derivatives in high yields. The reaction proceeds well with copper, rhodium, and ruthenium catalysts. The best catalysts for the enantioselective version are either Evans' Cu·bis(oxazoline) or Nishiyama's Ru·pybox.Key words: cyclopropylphosphonic acids, copper catalysts, ruthenium catalysts, cyclopropanation, diazo reagents.

Comparing the Enantioselective Power of Steric and Electrostatic Effects in Transition-Metal-Catalyzed Asymmetric Synthesis

2010 ◽  
Vol 16 (48) ◽  
pp. 14348-14353 ◽  
Author(s):  
Albert Poater ◽  
Francesco Ragone ◽  
Ronaldo Mariz ◽  
Reto Dorta ◽  
Luigi Cavallo
Keyword(s):  
Transition Metal ◽  
Asymmetric Synthesis ◽  
Electrostatic Effects ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed
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