Benzylmethoxybis(2,4,6-triisopropylphenyl)tin (1) and benzylisopropoxybis(2,4,6-triisopropylphenyl) tin (2) were synthesized and characterized. Compound 1 exhibited good activity in the ring-opening polymerization of -caprolactone, in a liVing fashion, under mild conditions. The polymerization was demonstrated to proceed via ring-opening of the monomer at the acyl-oxygen bond. The -caprolactone insertion product into the Sn-OCH3 of the initiator was characterized, providing support for a “coordination-insertion” mechanism.
Ring-Opening of ε-Caprolactone by Benzyl-Alkoxy-Bis(2,4,6-triisopropylphenyl)Tin Compounds: Observation of the Insertion Product into the Sn-OMe bond
PAPPALARDO D;
2007-01-01
Abstract
Benzylmethoxybis(2,4,6-triisopropylphenyl)tin (1) and benzylisopropoxybis(2,4,6-triisopropylphenyl) tin (2) were synthesized and characterized. Compound 1 exhibited good activity in the ring-opening polymerization of -caprolactone, in a liVing fashion, under mild conditions. The polymerization was demonstrated to proceed via ring-opening of the monomer at the acyl-oxygen bond. The -caprolactone insertion product into the Sn-OCH3 of the initiator was characterized, providing support for a “coordination-insertion” mechanism.File in questo prodotto:
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