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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 8.

Figure 8

Plot of initial rate vs THF concentration in hexanes for the ortholithiation of ArH (0.0050 M) by 0.20 M LDA (curve A) and 0.050 M LDA (curve B) at −78 °C measured with IR spectroscopy (1323 cm−1). The curves depict unweighted least-squares fits to y = a[THF]n. Curve A: [a = (3.6 ± 0.6) × 10−7, n = (1.03 ± 0.07)]. Curve B: [a = (9 ± 2) × 10−9, n = (2.0 ± 0.1)].