ChemInform Abstract: Nucleophilic Ring Opening of Aryl α-Nitrocyclopropane Carboxylates with Sterically Protected but Electronically Effective Carbonyl and Nitro Group. A New Principle of α-Amino Acid Synthesis (2-Aminobutanoic Acid a4-Synthon).

ChemInform ◽  
1987 ◽  
Vol 18 (50) ◽  
Author(s):  
D. SEEBACH ◽  
R. HAENER ◽  
T. VETTIGER
2001 ◽  
Vol 79 (1) ◽  
pp. 94-104 ◽  
Author(s):  
Lan Wei ◽  
William D Lubell

Ring-opening of N-(PhF)serine-derived cyclic sulfamidate 17 was achieved with different nucleophiles (β-keto esters, β-keto ketones, dimethyl malonate, nitroethane, sodium azide, imidazole, and potassium thiocyanate) to prepare a variety of amino acid analogs. Two different pathways for ring opening of 17 were elucidated: direct nucleophilic displacement, as well as β-elimination followed by Michael addition. Furthermore, β-keto ester and β-keto ketone products 18k,18m, and 18i were converted to prolines and pyrazole amino acids.Key words: glutamate, amino acid, cyclic sulfamidate, proline.


Tetrahedron ◽  
1993 ◽  
Vol 49 (28) ◽  
pp. 6309-6330 ◽  
Author(s):  
Jack E. Baldwin ◽  
Alan C. Spivey ◽  
Christopher J. Schofield ◽  
Joseph B. Sweeney

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1707
Author(s):  
Wayiza Masamba

α-Amino acids find widespread applications in various areas of life and physical sciences. Their syntheses are carried out by a multitude of protocols, of which Petasis and Strecker reactions have emerged as the most straightforward and most widely used. Both reactions are three-component reactions using the same starting materials, except the nucleophilic species. The differences and similarities between these two important reactions are highlighted in this review.


Author(s):  
Anwen Fan ◽  
Jiarui Li ◽  
Yangqing Yu ◽  
Danping Zhang ◽  
Yao Nie ◽  
...  

1979 ◽  
Vol 18 (7) ◽  
pp. 1109-1111 ◽  
Author(s):  
Barbara Buchholz ◽  
Brigitte Reupke ◽  
Horst Bickel ◽  
Gernot Schultz

2021 ◽  
Vol 4 (5) ◽  
pp. 348-349
Author(s):  
Christopher K. Prier

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