Facile synthesis of novel optically active poly(amide-imide)s containingN,N?-(pyromellitoyl)-bis-l-phenylalanine diacid chloride and 5,5-disubstituted hydantoin derivatives under microwave irradiation

2003 ◽  
Vol 91 (1) ◽  
pp. 516-524 ◽  
Author(s):  
Khalil Faghihi ◽  
Khosrow Zamani ◽  
Azzizullah Mirsamie ◽  
Shadpour Mallakpour
Keyword(s):  
Microwave Irradiation ◽  
Optically Active ◽  
Facile Synthesis ◽  
Diacid Chloride ◽  
Hydantoin Derivatives

scholarly journals Facile synthesis of SnO2 shell followed by microwave treatment for high environmental stability of Ag nanoparticles

RSC Advances ◽  
2020 ◽  
Vol 10 (63) ◽  
pp. 38424-38436
Author(s):  
Anna Baranowska-Korczyc ◽  
Ewelina Mackiewicz ◽  
Katarzyna Ranoszek-Soliwoda ◽  
Jarosław Grobelny ◽  
Grzegorz Celichowski
Keyword(s):  
Microwave Irradiation ◽  
Ag Nanoparticles ◽  
Microwave Treatment ◽  
New Method ◽  
Environmental Stability ◽  
Facile Synthesis

This study describes a new method for passivating Ag nanoparticles (AgNPs) with SnO2 layer and their further treatment by microwave irradiation.

Suzuki-Miyaura cross-coupling reaction in water: facile synthesis of (hetero) aryl uracil bases using potassiumorganotrifluoroborates under microwave irradiation.

2016 ◽  
Vol 1 (15) ◽  
pp. 4721-4725 ◽  
Author(s):  
Bhaskaran Savitha ◽  
Ayyiliath M. Sajith ◽  
Eeda Koti Reddy ◽  
C. S. Ananda Kumar ◽  
M. Syed Ali Padusha
Keyword(s):  
Microwave Irradiation ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Facile Synthesis ◽  
Cross Coupling Reaction ◽  
Reaction In Water

scholarly journals Microwave-assisted synthesis and characterization of some optically active poly(ester-imide) thermoplastic elastomers

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Saeed Zahmatkesh ◽  
Abdol Reza Hajipour
Keyword(s):  
Thermal Analyses ◽  
Specific Rotation ◽  
Thermoplastic Elastomers ◽  
Optically Active ◽  
Microwave Assisted Synthesis ◽  
H Nmr ◽  
Microwave Assisted ◽  
Diacid Chloride ◽  
Elemental Analyses

AbstractPyromellitic dianhydride (1) was reacted with L-leucine (2) to result in [N,N'-(pyromellitoyl)-bis-L-leucine diacid] (3). This compound (3) was converted to N,N'-(pyromellitoyl)-bis-L-leucine diacid chloride (4) by reaction with thionyl chloride. The microwave-assisted polycondensation of this diacid chloride (4) with polyethyleneglycol-diol (PEG-200) and/or three synthetic bisphenols furnish a series of new PEIs and Co-PEIs in a laboratory microwave oven (Milestone). The resulting polymers and copolymers have inherent viscosities in the range of 0.31- 0.53 dl g-1. These polymers are optically active, thermally stable and soluble in polar aprotic solvents such as DMF, DMSO, NMP, DMAc and sulfuric acid. All of the above polymers were fully characterized by IR spectroscopy, 1H NMR spectroscopy, elemental analyses, specific rotation and thermal analyses. Some structural characterizations and physical properties of these optically active PEIs and Co-PEIs are reported.

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