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. Author manuscript; available in PMC: 2012 Apr 27.
Published in final edited form as: J Am Chem Soc. 2011 Mar 31;133(16):6429–6439. doi: 10.1021/ja2009746

Figure 4.

Figure 4

500 MHz 1H NMR (–87 °C) spectra of (a) the reaction of 5b with 1-butene after 3 h: 7:11a:11b = 60:39:1; and (b) the reaction of 5b with 1-butene after 72 h: 7:11a:11b:11c = 1:24:52:24 (β-H region).