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. Author manuscript; available in PMC: 2016 Mar 11.
Published in final edited form as: J Am Chem Soc. 2015 May 6;137(19):6292–6303. doi: 10.1021/jacs.5b01668

Figure 7.

Figure 7

Plot of initial rate vs LDA concentration in 12.2 M THF (curve A) and 3.05 M THF (curve B) for the ortholithiation of ArH (0.0050 M) at −78 °C measured with IR spectroscopy (1323 cm−1). The curves depict unweighted least-squares fits to y = a[LDA]n. Curve A: [a = (2.5 ± 0.6) × 10−5, n = (1.0 ± 0.1)]. Curve B: [a = (2.3 ± 0.5) × 10−5, n = (1.8 ± 0.1)].