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Selective derivatization and characterization of bifunctional “Janus-type”cyclotetrasiloxanes

Panisch, Robin; Bassindale, Alan R.; Korlyukov, Alexander A.; Pitak, Mateusz B.; Coles, Simon J. and Taylor, Peter G. (2013). Selective derivatization and characterization of bifunctional “Janus-type”cyclotetrasiloxanes. Organometallics, 32(6) pp. 1732–1742.

DOI (Digital Object Identifier) Link: https://doi.org/10.1021/om301158w
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Abstract

Stereoregular all-cis cyclotetrasiloxanes [R-Si(O)-R']4 with different functional groups attached to the opposite faces of the ring skeleton were derivatized without stereoisomerization or cleavage of the (SiO)]4 ring and with high selectivity using standard synthetic methods. The solid-state structures obtained for the iodophenylsubstituted starting material 16 ([p-I-C6H4-Si(O) OSiMe2Vin]4) and for the coupling product 21 ([biphenyl-CC-C6H4-Si(O) OSiMe2Vin]4) show a pronounced differentiation in the steric requirements of the different sides of the ring, resulting in characteristic crystal packing. In combination with the observed high thermal and chemical stability, these data demonstrate the high potential of cyclotetrasiloxanes for a wide range of applications.

Item Type: Journal Item
Copyright Holders: 2013 American Chemical Society
ISSN: 1520-6041
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Life, Health and Chemical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Other Departments > Vice-Chancellor's Office
Other Departments
Item ID: 37661
Depositing User: Peter Taylor
Date Deposited: 28 May 2013 09:00
Last Modified: 07 Dec 2018 10:16
URI: http://oro.open.ac.uk/id/eprint/37661
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