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. Author manuscript; available in PMC: 2012 Apr 6.
Published in final edited form as: J Am Chem Soc. 2011 Mar 14;133(13):4702–4705. doi: 10.1021/ja111060q

Table 4.

Intramolecular Competition Experiments to Compare Migration Preference.

graphic file with name nihms280781t22.jpg
entry 10 Styryl azide mol % Product yield, %a
1b a graphic file with name nihms280781t23.jpg 5 graphic file with name nihms280781t24.jpg R = n-hex 68
b R = Ph 95
2c c graphic file with name nihms280781t25.jpg 5 graphic file with name nihms280781t26.jpg >95
3 d graphic file with name nihms280781t27.jpg 5 graphic file with name nihms280781t28.jpg 49d
4 e graphic file with name nihms280781t29.jpg 5 graphic file with name nihms280781t30.jpg 91
5 f graphic file with name nihms280781t31.jpg 1 graphic file with name nihms280781t32.jpg 40d
a

Isolated yield after SiO2 chromatography.

b

ref. 7b.

c

ref. 12a.

d

Remaining material was oligomeric decomposition.