The fractionation of deoxypentose nucleic acids, recently reported from this laboratory (1, 2), is essentially based on the fractional extraction of nucleohistone or artificial histone nucleates with salt solutions of increasing concentration in the presence of a chloroform phase. In this manner, a series of fractions of regularly graded composition (falling proportions of guanine and cytosine,...

The fractionation of deoxypentose nucleic acids, recently reported from this laboratory (1, 2), is essentially based on the fractional extraction of nucleohistone or artificial histone nucleates with salt solutions of increasing concentration in the presence of a chloroform phase. In this manner, a series of fractions of regularly graded composition (falling proportions of guanine and cytosine,...

Various Biginelli compounds (dihydropyrimidinones) have been synthesized efficiently and in high yields under mild, solvent-free, and eco-friendly conditions in a one-pot reaction of 1,3-dicarbonyl compounds, aldehydes, and urea/thiourea/acetyl thiourea using lithium-acetate as a novel catalyst without the addition of any proton source. Comparative catalytic efficiency of lithium-acetate and po...

Number of Papers published in peer-reviewed journals: Number of Papers published in non peer-reviewed journals: Final Report: Molecular Dynamics and Morphology of High-Performance Elastomers and Fibers by Solid-State NMR Report Title Poly(p-phenylene-2,6-benzobisoxazole) (PBO) is an engineering fiber of extraordinary properties, but has been found to degrade quickly under moisture and ultraviol...