Enantioselective Hydrogenation of α-Dehydroamino Acid Esters

Synfacts ◽  
2010 ◽  
Vol 2010 (08) ◽  
pp. 0925-0925
ChemInform ◽  
2004 ◽  
Vol 35 (46) ◽  
Author(s):  
Hanmin Huang ◽  
Xiongcai Liu ◽  
Song Chen ◽  
Huilin Chen ◽  
Zhuo Zheng

2004 ◽  
Vol 15 (13) ◽  
pp. 2011-2019 ◽  
Author(s):  
Hanmin Huang ◽  
Xiongcai Liu ◽  
Song Chen ◽  
Huilin Chen ◽  
Zhuo Zheng

1990 ◽  
Vol 68 (8) ◽  
pp. 1425-1436 ◽  
Author(s):  
Oliver E. Edwards ◽  
Werner Rank

Photolysis of 2-alkyl-2-azido-3-oxobutanoic esters and amides gave products resulting from alkyl or acyl migration onto nitrogen. The resulting ketimimes could be isolated in moderate purity, but the N-acyl imines were rapidly converted into solvation products or enamides (N-acetyl dehydroamino acid esters) resulting from double bond migration. Mechanisms for formation of these products are discussed. The N-(2-azido-2-methyl-3-oxobutanoyl) derivative of the diketopiperazine from L-valyl-L-proline gave a stereoisomer of the cyclol tripeptide unit of ergovaline. Keywords: N-acyl imines, mechanism of 2-azido-3-keto ester photolysis, cyclol tripeptide synthesis, ergovaline.


2007 ◽  
Vol 2007 (32) ◽  
pp. 5395-5403 ◽  
Author(s):  
Luc Eberhardt ◽  
Dominique Armspach ◽  
Dominique Matt ◽  
Loic Toupet ◽  
Benoît Oswald

Sign in / Sign up

Export Citation Format

Share Document