ChemInform Abstract: Oxidative Decarboxylation of Cyclic Amino Acids and Dehydrogenation of Cyclic Secondary Amines with Iodosobenzene.

ChemInform ◽  
1989 ◽  
Vol 20 (26) ◽  
Author(s):  
M. OCHIAI ◽  
M. INENAGA ◽  
Y. NAGAO ◽  
R. M. MORIARTY ◽  
R. K. VAID ◽  
...  
Keyword(s):  
Amino Acids ◽  
Secondary Amines ◽  
Oxidative Decarboxylation ◽  
Cyclic Amino Acids

Oxidative decarboxylation of cyclic amino acids and dehydrogenation of cyclic secondary amines with iodosobenzene

1988 ◽  
Vol 29 (52) ◽  
pp. 6917-6920 ◽  
Author(s):  
Masahito Ochiai ◽  
Minako Inenaga ◽  
Yoshimitsu Nagao ◽  
Robert M. Moriarty ◽  
Radhe K Vaid ◽  
...  
Keyword(s):  
Amino Acids ◽  
Secondary Amines ◽  
Oxidative Decarboxylation ◽  
Cyclic Amino Acids

Use of hydrolases for the synthesis of cyclic amino acids

Tetrahedron ◽  
2004 ◽  
Vol 60 (3) ◽  
pp. 717-728 ◽  
Author(s):  
Richard C Lloyd ◽  
Michael C Lloyd ◽  
Mark E.B Smith ◽  
Karen E Holt ◽  
Jonathan P Swift ◽  
...  
Keyword(s):  
Amino Acids ◽  
Cyclic Amino Acids

Chichibabin pyridinium synthesis via oxidative decarboxylation of photoexcited α-enamine acids

2021 ◽  
Author(s):  
Zhiqiang Pan ◽  
Fengchi Hu ◽  
Di Jiang ◽  
Yuchang Liu ◽  
Chengfeng Xia
Keyword(s):  
Amino Acids ◽  
Oxidative Decarboxylation

The photoexcited enamines derived from α-amino acids could undergo an oxidative decarboxylation followed by a Chichibabin cyclization to afford highly substituted pyridiniums.

H2O2-oxidation of α-aminoisobutyric and cyclic amino acids catalyzed by iron(III) isoindoline complexes

Polyhedron ◽  
2015 ◽  
Vol 89 ◽  
pp. 91-95 ◽  
Author(s):  
Dóra Lakk-Bogáth ◽  
Miklós Harasztia ◽  
Róbert Csonka ◽  
Gábor Speier ◽  
József Kaizer
Keyword(s):  
Amino Acids ◽  
H2o2 Oxidation ◽  
Cyclic Amino Acids

scholarly journals Synthesis of new Cα-tetrasubstituted α-amino acids

2009 ◽  
Vol 5 ◽  
Author(s):  
Andreas A Grauer ◽  
Burkhard König
Keyword(s):  
Amino Acids ◽  
Secondary Structure ◽  
Aromatic Aldehydes ◽  
Building Blocks ◽  
Reaction Conditions ◽  
Peptide Backbone ◽  
Aliphatic Aldehydes ◽  
New Class ◽  
Cyclic Amino Acids

Cα-Tetrasubstituted α-amino acids are important building blocks for the synthesis of peptidemimetics with stabilized secondary structure, because of their ability to rigidify the peptide backbone. Recently our group reported a new class of cyclic Cα-tetrasubstituted tetrahydrofuran α-amino acids prepared from methionine and aromatic aldehydes. We now report the extension of this methodology to aliphatic aldehydes. Although such aldehydes are prone to give aldol products under the reaction conditions used, we were able to obtain the target cyclic amino acids in low to moderate yields and in some cases with good diastereoselectivity.

Titration syntheses of polyaminosubstituted phthalocyanines via nucleophilic aromatic substitutions on zinc(II) 1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecafluorophthalocyanine

2007 ◽  
Vol 11 (07) ◽  
pp. 537-546 ◽  
Author(s):  
Clifford C. Leznoff ◽  
Annette Hiebert ◽  
Sibel Ok
Keyword(s):  
Amino Acids ◽  
Chain Length ◽  
Secondary Amines ◽  
Primary Amines ◽  
Tertiary Butyl ◽  
Butyl Esters ◽  
Mild Conditions ◽  
Nucleophilic Aromatic Substitutions

Primary amines, secondary amines and tertiary butyl esters of amino acids are used as nucleophiles with zinc(II) hexadecafluorophthalocyanine to provide mixtures of mono and disubstituted fluorinated phthalocyanines under mild conditions, or polyaminosubstituted phthalocyanines when using the amines as solvents. Diamines give cyclic substituted phthalocyanines, binuclear or trinuclear phthalocyanines or mixtures of both types, depending on the chain length or structure of the diamine.

New reaction involving the detritylation of N-trityl-substituted cyclic amino acids

1984 ◽  
Vol 20 (5) ◽  
pp. 576-576
Author(s):  
A. V. Eremeev ◽  
F. D. Polyak ◽  
�. �. Liepin'sh
Keyword(s):  
Amino Acids ◽  
Cyclic Amino Acids
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