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Zinc calixarene complexes for the ring opening polymerization of cyclic esters (2014)
Journal Article
Lancaster, S. J., Walton, M. J., Wright, J. A., Elsegood, M. R. J., & Redshaw, C. (2014). Zinc calixarene complexes for the ring opening polymerization of cyclic esters. Dalton transactions : an international journal of inorganic chemistry / RSoC, 43(48), 18001-18009. doi:10.1039/c4dt02226b

Reaction of Zn(C₆F₅)₂·toluene (two equivalents) with 1,3-dipropoxy-p-tert-butyl-calix[4]arene (L¹H₂) led to the isolation of the complex [{Zn(C₆F₅)}₂L¹] (1), whilst similar use of Zn(Me)₂ resulted in the known complex [{Zn(Me)}₂L¹] (2). Treatment of... Read More

Highly selective and immortal magnesium calixarene complexes for the ring-opening polymerization of rac-lactide (2014)
Journal Article
Walton, M. J., Lancaster, S. J., & Redshaw, C. (2014). Highly selective and immortal magnesium calixarene complexes for the ring-opening polymerization of rac-lactide. ChemCatChem, 6(7), 1892-1898. doi:10.1002/cctc.201402041

The lithiation of 1,3-dipropoxy-p-tert-butylcalix[4]arene (LH₂) followed by reaction with nBuMgBr in THF resulted in the formation of the hetero-bimetallic complex [Li(THF)Mg(nBu)L] (1). By contrast, the treatment of tripropoxy-p-tert-butylcalix[4]ar... Read More