In our study 1-(3,4-methylenedioxyphenyl)-2-propanone (MDP-2-P or PMK) was prepared by two different routes, i.e. by oxidizing isosafrole in an acid medium and by 1-(3,4-methylenedioxyphenyl)-2-nitropropene reduction. The final product-MDP-2-P was subjected to GC/MS analysis. The intermediates and reaction by-products were identified and the 'route specific' impurities were established. The fol...

Tough recyclable polyacetals Cyclic acetals such as dioxolane are appealing building blocks for plastics but have proven to be difficult polymerize controllably. Abel et al . show that optimal pairing of a bromomethyl ether and indium or zinc Lewis acid produces polydioxolane with high tensile strength may advantageous packaging applications. Heating this plastic in strong easily breaks it back...

Upon copolymerization of carbohydrate-based cyclic moieties, they offer a variety new functionalities and convenient way to modify the properties material. Structurally electronegative sites present in structures have major influence on hydrogen bonding. In this study consequences incorporation 2,3:4,5-di-O-methylene-galactarate (GalXH) 2,3:4,5-di-O-isopropylidene-galactarate (GalXMe) moieties ...