Modeling the catalyst resting state in aryl tin (iv) polymerizations of lactide and estimating the relative rates of transamidation, transesterification and chain transfer
MH Chisholm, EE Delbridge, JC Gallucci
Index: Chisholm, Malcolm H.; Delbridge, Ewan E.; Gallucci, Judith C. New Journal of Chemistry, 2004 , vol. 28, # 1 p. 145 - 152
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Citation Number: 19
Abstract
The preparation and characterization (IR, 1H, 13C {1H}, 119Sn NMR spectroscopy, elemental analysis and single crystal X-ray structure determination) are reported for Ph3SnOCMe2C (O) OEt (1) and Ph2Sn [OCMe2C (O) NMe2] 2 (2). In the solid state, compound 1 contains four-coordinate tin with evidence for incipient bond formation to the ester oxygen: Sn⋯ O= 2.648 (2) Å. Compound 2 contains six-coordinate tin in a pseudo- ...
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