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. Author manuscript; available in PMC: 2009 Dec 31.
Published in final edited form as: J Am Chem Soc. 2008 Dec 31;130(52):18008–18017. doi: 10.1021/ja807331k

Figure 13.

Figure 13

Plot of initial rates versus [THF] for the lithiation of carbamate 1 (0.004 M) in 0.1 M LDA using hexanes as cosolvent at −78 °C. The curve depicts the result of an unweighted least-squares fit to rate = k[THF] + k′ (k = (1.0 ± 0.2) × 10−6; k′ = 2.3 ± 0.1) × 10−5).