Synthesis and Characterization of New Optically Active Poly(amide-imide)s Based on N,N′-(Pyromellitoyl)-bis-L-Amino Acids and 1,3,4-Oxadiazole Moieties

2010 ◽  
Vol 13 (3) ◽  
pp. 207-220 ◽  
Author(s):  
Khalil Faghihi ◽  
Hassan Moghanian
Keyword(s):  
Amino Acids ◽  
Optically Active ◽  
Synthesis And Characterization

Synthesis and characterization of novel optically active poly(ester-imide-imine)s

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Abdol Reza Hajipour ◽  
Parniyan Roosta ◽  
Saeed Zahmatkesh ◽  
Arnold E. Ruoho
Keyword(s):  
Amino Acids ◽  
Acetic Acid ◽  
Glacial Acetic Acid ◽  
Optically Active ◽  
Synthesis And Characterization ◽  
Interfacial Polycondensation ◽  
Thermal Stabilities ◽  
Amino Phenol ◽  
High Yields

Abstract N,N´-(3,3´,4,4´-Benzophenonetetracarboxylic)-3,3´,4,4´-diimido-di-Lamino acids (1a-1d) and N,N´-pyromelliticdiimido-di-L-amino acids (2a-2d) are prepared from the reaction of 3,3´,4,4´-benzenetetracarboxylic-3,3´,4,4´- dianhydride or pyromellitic dianhydride with the corresponding L-amino acids in a solution of glacial acetic acid/pyridine (3:2) at refluxing temperature. 4-(4-((4- Hydroxyphenylimino)methyl)benzylidene amino) phenol (3) is prepared from 4- amino phenol and terephthaldialdehyde in refluxing ethanol. Interfacial polycondensation method was used to prepare the corresponding polymers (PEII1-8) in two immiscible solvents (water/dichloromethane). The resulting poly(esterimide- imine)s (PEIIs) having good inherent viscosities (0.13-1.25 dl g-1), optical activity and thermal stabilities is obtained in high yields.

Synthesis and characterization of supramolecular optically active bisamides derived from amino acids

Tetrahedron ◽  
2012 ◽  
Vol 68 (32) ◽  
pp. 6528-6534 ◽  
Author(s):  
G. Shanker ◽  
D.S. Shankar Rao ◽  
S. Krishna Prasad ◽  
C.V. Yelamaggad
Keyword(s):  
Amino Acids ◽  
Optically Active ◽  
Synthesis And Characterization

Synthesis and characterization of poly(aspartic acid) derivatives conjugated with various amino acids

2010 ◽  
Vol 18 (5) ◽  
pp. 881-890 ◽  
Author(s):  
Ji-Heung Kim ◽  
Chang Mo Son ◽  
Young Sil Jeon ◽  
Woo-Seok Choe
Keyword(s):  
Amino Acids ◽  
Aspartic Acid ◽  
Synthesis And Characterization

Synthesis and characterization of hemins having amino acids bound to the porphyrin ring

1981 ◽  
Vol 13 (3) ◽  
pp. 367-378
Author(s):  
Kevin Bullock ◽  
Donald G. Davis ◽  
George G. Guilbault
Keyword(s):  
Amino Acids ◽  
Synthesis And Characterization ◽  
Porphyrin Ring
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