This review deals with recent organo-catalyzed/initiated developments of co-polymerization cyclic anhydrides and epoxides to access polyesters.

A strategy for the creation of sp 3 -rich, non-planar scaffolds drug discovery is described. Stereocontrolled ring opening homochiral 1,2-epoxides by hydrazine monohydrate followed selective protection both nitrogen atoms and Mitsunobu closure gives differentially protected, enantiomerically pure 1,2-diazetidines (up to 98% ee) bearing a variety C-3 substituents. Iterative C–N functionalization...

a mild, green and highly efficient route for regio-selective amination of oxiranes was developed via incorporation of mn(ii), fe(ii), co(ii), ni(ii), cu(ii) and zn(ii) cations onto the surface of hydroxyapatite-encapsulated γ-fe2o3 nanoparticles (γ-fe2o3@hap). among six magnetically recoverable catalytic systems denoted as [γ-fe2o3@hap-mii], the catalyst in which m designated as fe(ii) showed t...

polydimethylsiloxane (pdms) has been synthesized by ring-opening polymerization of octamethylcyclotetrasiloxane (d4) in microemulsion with acidic catalyst. the structure and properties of microemulsion were characterized by transmission electron microscopy (tem), fourier transform infrared spectroscopy (ft-ir), photo correlation spectroscopy (pcs). the effect of the variation in ph value, amoun...

The synthesis, characterization and crystal structures of copper complexes with chelate ligation derived from the compound 2.2′-diphenylglycine (DpgH) are reported. Compounds [CuCl(Dpg)(EtOH)]2 ( 1 ) [(CuBr2)2(Dpg)2Cu(EtOH)4] 2 were found to be low toxicity using against cancerous cell lines (HCT116 HT29) IC50 values for complex lower than that cisplatin, while opposite was observed . These ina...