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Synthesis and properties of new optically active and organosoluble poly(ester-imide)s containing L-valine moieties in the main chain by direct polycondensation reaction
Poly(ester-imide)s direct polycondensation optically active polymers thermal properties
2011/4/6
New optically active poly(ester-imide)s (PEIs) containing bicyclo[2,2,2]oct-7-ene-2,3,5,6-tetracarboxylic diimide in the main chain were prepared by the reaction of N,N'-(bicyclo[2,2,2]oct-7- ene-2,3,...
Synthesis of Some Novel Optically Active Isocoumarin and 3,4-Dihydroisocoumarin Containing L-valine and L-leucine Moieties
Isocoumarin Dihydroisocoumarin Homophthalic Amino acid
2010/4/20
Phthalic anhydride was reacted with L-Valine and L-Leucine in a mixture of acetic acid and pyridine at room temperature, and then was refluxed at 90-100 °C and N-phthaloyl-L-valine or N-phthaloyl-L-le...