Skip to main content
. Author manuscript; available in PMC: 2011 Sep 14.
Published in final edited form as: Tetrahedron. 2009 Jun 27;65(26):5056–5061. doi: 10.1016/j.tet.2009.02.021

Table 1.

Ligand screena

graphic file with name nihms98072u1.jpg
entry L 2-pyridoneb enynamideb
1 PPh3 5% 13%
2 P(4-MeO-C6H4)3 11% 18%
3 P(4-CF3-C6H4)3 22% 12%
4 rac-L1 39% -
5 rac-L2 68% 6%
graphic file with name nihms98072t1.jpg
a

Conditions: 1 (3 equiv), 2, Rh catalyst (2.5 mol %), L (5 mol %) in PhMe reflux for 12 h.

b

Isolated yield.