Triazole complexes titanium

Nozaki s zirconium(iv) BOXDIPY initiator was inactive for the copolymerisation of PO/carbon dioxide with the addition of 1 equivalent of [PPN]Cl (2.0 MPa carbon dioxide, 60 °C) forming the cyclic carbonate in 100% yield. ° Tbe complex was able to produce a polycarbonate with CHO, although the proportion of ether linkages was high. Titanium(iv) and germanium(iv) complexes were also screened, with more success than the zirconium(iv) analogue. In 2014 Ko prepared a series of zirconium(iv) amine-bis(benzo-triazole) phenolate complexes for the ROP of rac-LA and the production of... 

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