Alkali-Metal-Catalyzed Cross-Dehydrogenative Couplings of Hydrosilanes with Amines

ChemCatChem ◽  
2016 ◽  
Vol 8 (7) ◽  
pp. 1373-1378 ◽  
Author(s):  
Srinivas Anga ◽  
Yann Sarazin ◽  
Jean-François Carpentier ◽  
Tarun K. Panda
Keyword(s):  
Alkali Metal ◽  
Metal Catalyzed

Alkali metal catalyzed carbon dioxide gasification of carbon

1992 ◽  
Vol 6 (4) ◽  
pp. 343-351 ◽  
Author(s):  
Toshimitsu Suzuki ◽  
Hiroyuki Ohme ◽  
Yoshihisa Watanabe
Keyword(s):  
Carbon Dioxide ◽  
Alkali Metal ◽  
Gasification Of Carbon ◽  
Metal Catalyzed ◽  
Carbon Dioxide Gasification

Ligand Effect in Alkali‐Metal‐Catalyzed Transfer Hydrogenation of Ketones

2019 ◽  
Vol 25 (50) ◽  
pp. 11734-11744 ◽  
Author(s):  
Iryna D. Alshakova ◽  
Hayden C. Foy ◽  
Travis Dudding ◽  
Georgii I. Nikonov
Keyword(s):  
Alkali Metal ◽  
Transfer Hydrogenation ◽  
Ligand Effect ◽  
Metal Catalyzed

Structure of Alkali Metal-Catalyzed Butadiene Polymers

1953 ◽  
Vol 26 (3) ◽  
pp. 522-527
Author(s):  
A. W. Meyer ◽  
R. R. Hampton ◽  
J. A. Davison
Keyword(s):  
Transition Temperature ◽  
Alkali Metal ◽  
Infrared Absorption ◽  
Styrene Copolymers ◽  
A Value ◽  
Second Order Transition ◽  
Metal Catalyzed ◽  
Sodium And Potassium ◽  
Absorption Measurements ◽  
Butadiene Styrene

Abstract The structures of various sodium and potassium-catalyzed butadiene polymers were determined from infrared absorption measurements. All of the polymers had a higher proportion of butadiene in the 1,2-configuration (45–80 per cent) than emulsion polybutadiene (18–23 per cent). Polybutadienes catalyzed by potassium had 15–20 per cent less butadiene in the 1,2-configuration than those in which sodium was the catalyst. When a mixture of sodium and potassium was used, the results were nearly the same as with the potassium catalyst alone. Polybutadienes made at 5° had 10 to 15 per cent more butadiene in the 1,2-configuration than those made at 45°. Diluent type had little or no effect on the structure of the polybutadienes. The butadiene portions of butadiene-styrene copolymers were found to have the same relative proportions of 1,2-, cis-1,4- and trans-1,4-configurations as the butadiene homopolymers. The second order transition temperature of sodium-catalyzed polybutadiene polymerized at 30° was −45°, whereas the 75° polybutadiene had a value of −64°.

scholarly journals Metal-Free and Alkali-Metal-Catalyzed Synthesis of Isoureas from Alcohols and Carbodiimides

2018 ◽  
Vol 57 (12) ◽  
pp. 3084-3088 ◽  
Author(s):  
Arnaud Imberdis ◽  
Guillaume Lefèvre ◽  
Pierre Thuéry ◽  
Thibault Cantat
Keyword(s):  
Alkali Metal ◽  
Metal Free ◽  
Metal Catalyzed

scholarly journals Metal-Free and Alkali-Metal-Catalyzed Synthesis of Isoureas from Alcohols and Carbodiimides

2018 ◽  
Vol 130 (12) ◽  
pp. 3138-3142 ◽  
Author(s):  
Arnaud Imberdis ◽  
Guillaume Lefèvre ◽  
Pierre Thuéry ◽  
Thibault Cantat
Keyword(s):  
Alkali Metal ◽  
Metal Free ◽  
Metal Catalyzed
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