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. Author manuscript; available in PMC: 2010 Apr 18.
Published in final edited form as: Tetrahedron. 2009 Apr 18;65(16):3211–3221. doi: 10.1016/j.tet.2008.10.107

Table 4.

Effect of oxidant on the yield of cyclopropane 19a

graphic file with name nihms120628f17.jpg
Entry Oxidant Yield of 19aa
1 PhI(OAc)2 94%
2 Oxone 50%
3 K2S2O8 27%
4 CuCl2 0%
5 Cu(OAc)2 0%
6 Benzoquinone 0%
7 Air 0%
a

Yields determined by GC relative to an internal standard