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Plot of initial rate versus [THF] in Et2O for the ortholithiation of ArD (0.0020 M) by LDA (0.10 M) in the presence of 1.5 mol % LiCl (1.5 mM) monitored with IR spectroscopy at −78 °C. The curve depicts an unweighted least-squares fit to y = a[THF]n. [a = (5 ± 1) × 10–8, n = 1.9 ± 0.1].
