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Issue 3, 2001
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Monomeric metal alkoxides and trialkyl siloxides: (BDI)Mg(OtBu)(THF ) and (BDI)Zn(OSiPh3)(THF ). Comments on single site catalysts for ring-opening polymerization of lactides

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Abstract

The monomeric alkoxide (BDI)Mg(OtBu)(THF ) and triphenylsiloxide (BDI)Zn(OSiPh3)(THF ) have been prepared and characterized and shown to reversibly dissociate THF in solution on the NMR time scale; both compounds are active precursors for the ring-opening polymerization of lactide and the rate of polymerization is notably faster for the magnesium complex though in the polymerization of rac-lactide only the zinc complex shows selectivity for heterotactic tetrads.

Graphical abstract: Monomeric metal alkoxides and trialkyl siloxides: (BDI)Mg(OtBu)(THF [ ] ) and (BDI)Zn(OSiPh3)(THF [ ] ). Comments on single site catalysts for ring-opening polymerization of lactides [ ]

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Publication details

The article was received on 10 Oct 2000, accepted on 20 Dec 2000 and first published on 15 Jan 2001


Article type: Communication
DOI: 10.1039/B008158M
Citation: J. Chem. Soc., Dalton Trans., 2001,0, 222-224
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    Monomeric metal alkoxides and trialkyl siloxides: (BDI)Mg(OtBu)(THF ) and (BDI)Zn(OSiPh3)(THF ). Comments on single site catalysts for ring-opening polymerization of lactides

    M. H. Chisholm, J. C. Huffman and K. Phomphrai, J. Chem. Soc., Dalton Trans., 2001, 0, 222
    DOI: 10.1039/B008158M

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