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. Author manuscript; available in PMC: 2009 Nov 21.
Published in final edited form as: Org Lett. 2008 Oct 16;10(22):5257–5260. doi: 10.1021/ol8018538

Table 1.

Silver-Catalyzed Silylcarbonyl Ylide Cycloaddition

graphic file with name nihms91107f11.jpg
entry substrate (12) product (13) yield
1 graphic file with name nihms91107t1.jpg graphic file with name nihms91107t6.jpg 13a 82%
2 graphic file with name nihms91107t2.jpg graphic file with name nihms91107t7.jpg 13b 64%
3 graphic file with name nihms91107t3.jpg graphic file with name nihms91107t8.jpg 13c 68%a
4 graphic file with name nihms91107t4.jpg graphic file with name nihms91107t9.jpg 13d 77%b
5 graphic file with name nihms91107t5.jpg graphic file with name nihms91107t10.jpg 13e 74%c
a

At 50 °C for 12 h.

b

For 3 h.

c

Four equivalents of 6 and four equivalents of 12e.