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. Author manuscript; available in PMC: 2014 Jun 21.
Published in final edited form as: Org Lett. 2013 May 30;15(12):2994–2997. doi: 10.1021/ol401184k

Table 1.

Selected Optimization Experiments in the Ruthenium Catalyzed C-C Coupling of 3-Hydroxy-2-oxindole 1a and Isoprene 2a.a

graphic file with name nihms487411t1.jpg
entry 2a (mol %) temp time (h) yield %
1 500 130 72 71
2 500 130 48 76
3 500 130 24 73
4 300 130 24 74
5 100 130 24 76
6 100 110 24 83
7 100 90 24 57
a

Yields are of material isolated by silica gel chromatography. See Supporting Information for further details.