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. Author manuscript; available in PMC: 2009 Dec 24.
Published in final edited form as: J Am Chem Soc. 2008 Dec 24;130(51):17258–17259. doi: 10.1021/ja807894t

Table 3.

Ruthenium-catalyzed ring-expansion of alkyl-substituted alkynylcyclopropanols to cyclopentenones

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Entry R Product Time(h) Yielda
1 n-C6H13 10a 12a 4 78%
2 Bn 10b 12b 6 81%
3 Cy 10c 12c 4 88%
4 (CH2)3OBn 10d 12d 2 76%
5 (CH2)4OBn 10e 12e 2 68%
6 (CH2)3Cl 10f 12f 2 74%
a

Yields refer to pure, isolated products.