Noncyclic crown-type polyether polymers for transport of alkali cation and amino acid anion

1982 ◽  
Vol 20 (10) ◽  
pp. 2989-2993 ◽  
Author(s):  
Hiroshi Tsukube
Keyword(s):  
Amino Acid ◽  
Alkali Cation ◽  
Acid Anion ◽  
Amino Acid Anion

Acridine-based complex as amino acid anion fluorescent sensor in aqueous solution

2016 ◽  
Vol 157 ◽  
pp. 1-5 ◽  
Author(s):  
Yanpeng Dai ◽  
Kuoxi Xu ◽  
Qian Li ◽  
Chaoyu Wang ◽  
Xiaoyan Liu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Amino Acid ◽  
Fluorescent Sensor ◽  
Acid Anion ◽  
Amino Acid Anion

N,N-Dialkoxycarbonylamino acid formation from a mixed anhydride through intramolecular urethane acylation

1987 ◽  
Vol 65 (6) ◽  
pp. 1228-1229 ◽  
Author(s):  
Francis M. F. Chen ◽  
N. Leo Benoiton
Keyword(s):  
Amino Acid ◽  
Side Reaction ◽  
Acid Formation ◽  
Mixed Anhydride ◽  
Significant Extent ◽  
Acid Anion ◽  
Amino Acid Anion

Methoxycarbonylation at the urethane nitrogen of N-benzyloxycarbonyl- and N-methoxycarbonylvaline has been identified as a side reaction accompanying the aminolysis of the mixed anhydride formed from the acid and methyl chloroformate when the anhydride is coupled in aqueous dimethylformamide and the nucleophile is an amino acid anion. The side reaction occurs to a lesser but still significant extent when the activated residue is leucyl.

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