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Ring-opening polymerization (ROP) of maleic anhydride (MA) or L-Lactide (L-LA) with tert-butyl glycidyl ether (tBGE) were carried out in the presence of Ti and Zr complexes of benzoxazole substituted 8-hydroxyquinoline ligands (1a-3a and 1b-3b), delivering nearly alternative P(tBGE-co-MA) and block-like P(tBGE)-b-PLLA co-polymers with high molecular weight (Mn) and narrow to broad molecular weight...
New phosphoroamidate compounds with 1,1′-Bi-2-napthol (binol) ligand were synthesized from the corresponding phosphorochloridate intermediates and benzyl amine or benzyl amine derivatives. They were completely characterized using different spectroscopic methods and single crystal X-ray diffraction studies. These compounds effectively catalyze the ring-opening polymerization of ε-caprolactone (CL)...
A large variety of aryloxy compounds and benzyloxy derivatives of Hf(IV) were synthesized from Hf(O-tBu) 4 using the alcoholysis route. These compounds were completely characterized using various spectroscopic and analytical methods along with single crystal X-ray diffraction studies. Multinuclear NMR studies prove high degree of fluxional behavior of these compounds in solution. They adopt...
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