Organic Letters
Detailed experimental procedures, characterization data,
Letter
51, 6232. For Rh-catalyzed intramolecular [5 + 2] cycloaddition of
allenylcyclopropanes with alkynes, see: (m) Inagaki, F.; Sugikubo, K.;
Miyashita, Y.; Mukai, C. Angew. Chem., Int. Ed. 2010, 49, 2206. For
related Rh-catalyzed hetero-[5 + 2] cycloadditions, see: (n) Wender,
P. A.; Pedersen, T. M.; Scanio, M. J. C. J. Am. Chem. Soc. 2002, 124,
1
13
(
X-ray data for compound 2n (CIF)
1
5154. (o) Feng, J.-J.; Zhang, J. J. Am. Chem. Soc. 2011, 133, 7304.
(p) Feng, J.-J.; Lin, T.-Y.; Wu, H.-H.; Zhang, J. J. Am. Chem. Soc. 2015,
37, 3787.
10) (a) Wender, P. A.; Husfeld, C. O.; Langkopf, E.; Love, J. A. J.
AUTHOR INFORMATION
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*
1
(
Notes
Am. Chem. Soc. 1998, 120, 1940. (b) Wender, P. A.; Haustedt, L. O.;
Lim, J.; Love, J. A.; Williams, T. J.; Yoon, J. Y. J. Am. Chem. Soc. 2006,
1
28, 6302.
The authors declare no competing financial interest.
(
11) Jiao, L.; Ye, S.; Yu, Z.-X. J. Am. Chem. Soc. 2008, 130, 7178.
(
12) For Rh-catalyzed [5 + 2] cycloaddition of VCPs with allenes,
ACKNOWLEDGMENTS
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see: (a) Wender, P. A.; Glorius, F.; Husfeld, C. O.; Langkopf, E.; Love,
J. A. J. Am. Chem. Soc. 1999, 121, 5348. (b) Wegner, H. A.; de Meijere,
A.; Wender, P. A. J. Am. Chem. Soc. 2005, 127, 6530.
We thank the NIH (R01GM088285), NSF (CHE-1464754),
and the University of Wisconsin for funding. L.C. thanks the
Chinese Scholarship Council for financial support.
(13) (a) Shu, X.-Z.; Huang, S.; Shu, D.; Guzei, I. A.; Tang, W. Angew.
Chem., Int. Ed. 2011, 50, 8153. (b) Shu, X.-Z.; Li, X.; Shu, D.; Huang,
S.; Schienebeck, C. M.; Zhou, X.; Robichaux, P. J.; Tang, W. J. Am.
Chem. Soc. 2012, 134, 5211. (c) Shu, X.-Z.; Schienebeck, C. M.; Song,
W.; Guzei, I. A.; Tang, W. Angew. Chem., Int. Ed. 2013, 52, 13601.
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