Transition-metal-catalyzed conjugated polymers of 1,6-heptadiyne derivatives in supercritical carbon dioxide

2006 ◽  
Vol 44 (4) ◽  
pp. 1555-1560 ◽  
Author(s):  
B. Vijaya Kumar Naidu ◽  
Bang-Hee Oh ◽  
Dong-Hee Nam ◽  
Chan-Koo Hwang ◽  
Sung-Ho Jin ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Transition Metal ◽  
Supercritical Carbon Dioxide ◽  
Conjugated Polymers ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed ◽  
Supercritical Carbon

Cyclic α-Amino Acids via Enantioselective Metal-Catalyzed Cascade Reactions of Dienamides in Supercritical Carbon Dioxide

2005 ◽  
Vol 58 (1) ◽  
pp. 63 ◽  
Author(s):  
Euneace Teoh ◽  
W. Roy Jackson ◽  
Andrea J. Robinson
Keyword(s):  
Carbon Dioxide ◽  
Amino Acids ◽  
Supercritical Carbon Dioxide ◽  
Cascade Reactions ◽  
Metal Catalyzed ◽  
Supercritical Carbon

Highly enantioselective conversion of dienamides into cyclic α-amino acids can be achieved by a single-pot, tandem hydrogenation–hydroformylation–cyclization–elimination sequence using a single catalyst and supercritical carbon dioxide (scCO2) as the reaction solvent at total pressures significantly lower than those previously reported for related hydrogenation and hydroformylation reactions.

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