Ab initio SCF-MO study of the Staudinger phosphorylation reaction between a phosphane and an azide to form a phosphazene †
- 1 January 1999
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 9,p. 1811-1814
- https://doi.org/10.1039/a904474d
Abstract
The lowest energy pathway for a Staudinger reaction between a phosphane and an azide is predicted at the RHF and DFT ab initio SCF-MO level to proceed via an s-cis intermediate 7, followed by cyclisation and elimination of N2 to form a phosphazene. When suitable stabilising substituents are present, 7 can instead isomerise to the isolable s-trans intermediate 9. Natural bond orbital perturbation theory analysis has been employed to identify the factors influencing the relative stability of the s-cis phosphazide and the s-trans isomers.Keywords
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