Shipov, Aleksandr G.; Kramarova, Evgeniya P.; Mamaeva, Elizaveta A.; Oksana, A. Zamyshlyaeva; Negrebetskii, Vadim V.; Ovchinnikov, Yuri E.; Pogozhikh, Sergey A.; Bassindale, Alan R.; Taylor, Peter G. and Baukov, Yuri I.
|DOI (Digital Object Identifier) Link:||http://dx.doi.org/10.1016/S0022-328X(00)00821-4|
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Reactions of 2-sila-5-morpholinones, 4-acyl-2-silamorphoiines and 4-acyl-2,6-disilamorpholines with electrophilic reagents generally lead to the opening of the sila- or disilacycle by cleavage of the Si-O bond with subsequent rearrangement to form five-membered chelate derivatives where the amide oxygen atoms coordinate with the silicon to form pentacoordinate silicon species. Multinuclear NMR spectroscopy and X-ray diffraction studies were used for structural investigation of the products. 4-Acyl-2,6-disilamorpholines initially form adducts with strong acids where the amide oxygen is protonated by the acid as demonstrated by X-ray crystallography.
|Item Type:||Journal Article|
|Keywords:||silicon; pentacoordinate; morpholines|
|Academic Unit/Department:||Other Departments > Vice-Chancellor's Office
Science > Life, Health and Chemical Sciences
|Interdisciplinary Research Centre:||Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Biomedical Research Network (BRN)
|Depositing User:||Astrid Peterkin|
|Date Deposited:||10 Jan 2007|
|Last Modified:||24 Jul 2014 09:22|
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