Large-Scale Syntheses of Several Synthons to the Dearomatization Agent {TpW(NO)(PMe3)} and Convenient Spectroscopic Tools for Product Analysis
Organometallics2007Vol. 26(10), pp. 2791–2794
Citations Over TimeTop 10% of 2007 papers
Kevin D. Welch, Daniel P. Harrison, E.C. Lis, Weijun Liu, R.J. Salomon, W. Dean Harman, William H. Myers
Abstract
A series of complexes of the form TpW(NO)(PMe3)(η2-arene) (where arene = benzene, anisole, dimethoxybenzene, trifluorotoluene, and naphthalene) are evaluated as practical synthons for the versatile dearomatization agent {TpW(NO)(PMe3)}, considering air stability, synthetic scalability, and substitution lability. Large-scale syntheses (9−30 g) are reported for several of these complexes as well as their precursors (TpW(NO)(CO2), TpW(NO)Br2, and TpW(NO)(PMe3)Br), and methods for spectroscopic characterization of composition and stereochemistry for the arene complexes (including JPW correlations) are summarized.
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