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. Author manuscript; available in PMC: 2013 Oct 3.
Published in final edited form as: J Am Chem Soc. 2012 Sep 21;134(39):16430–16433. doi: 10.1021/ja307628w

Table 1.

graphic file with name nihms-409459-t0006.jpg

Entry R Conditions Yield [%]
1 SEt (15) (4-BrC6H4)3NSbCl6, 0 °C → rt 10%
2 SEt (15) BSP, Tf2O, TTBP, −60 °C ND
3 SEt (15) NIS, TfOH, −20 °C 16%
4 SEt (15) NIS, AgOTf, −20 °C 21%
5 F (16) Cp2HfCl2, AgClO4, 0 °C <5%
6 OH (18) Ph2SO, Tf2O, −60 °C ND
7 OC(NH)CCl3 (19) TMSOTf, −30 °C 19%
a

Key: ND=None Detected