Apicophilicity of the ethylthio-group in trigonal bipyramidal phosphoranes
- 1 January 1977
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 3,p. 273-278
- https://doi.org/10.1039/p19770000273
Abstract
The variable-temperature n.m.r. spectra of a number of five-co-ordinate spirophosphoranes having P-ethoxy- and P-ethylthio-groups have given data on the energetics of the pseudorotation processes available to the systems. It is concluded that the apicophilicities of ethoxy- and ethylthio-groups are similar. The spirophosphoranes were obtained from 2-substituted 1,3,2-dioxaphospholans by addition to biacetyl, 3-benzylidenepentane-2,4-dione, or 2-phenylacrylophenone, or by condensation with 1,2-diols in the presence of N-chlorodi-isopropylamine.Keywords
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