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Al(iii)-homopiperazine complexes and their exploitation for the production of polyesters


Reference:

Hancock, S.L., Jones, M.D., Langridge, C.J. and Mahon, M.F., 2012. Al(iii)-homopiperazine complexes and their exploitation for the production of polyesters. New Journal of Chemistry, 36 (9), pp. 1891-1896.

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    Official URL:

    http://dx.doi.org/10.1039/c2nj40300e

    Abstract

    In this paper we report the synthesis and characterisation of a series of Al(iii)-homopiperazine complexes. The ortho substituent has been varied from H, Me, tBu to investigate the effect this has on the solid-state structures and on the catalytic activity. Aluminium-methyl complexes involving ligands 1H , 3H and 5H have been characterised in the solid-state and the aluminium centres are in pseudo trigonal bipyramidal geometries. The aluminium-methyl complexes were further reacted with benzyl alcohol to generate alkoxide complexes, which have been fully characterised by multinuclear NMR spectroscopy and elemental analysis. The alkoxide complexes were tested in the ring opening polymerisation of rac-lactide, δ-valerolactone and ε-caprolactone. Furthermore, triblock polyesters were also prepared with these initiators. This journal is © 2012 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.

    Details

    Item Type Articles
    CreatorsHancock, S.L., Jones, M.D., Langridge, C.J. and Mahon, M.F.
    DOI10.1039/c2nj40300e
    DepartmentsFaculty of Science > Chemistry
    RefereedYes
    StatusPublished
    ID Code31428

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