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. Author manuscript; available in PMC: 2019 Aug 17.
Published in final edited form as: J Org Chem. 2018 Jul 6;83(16):8926–8935. doi: 10.1021/acs.joc.8b01146

Table 1.

Catalyst optimization.

graphic file with name nihms-978043-t0012.jpg
Entry Photocatalyst mol % Yield (%)a
1 [Ru(bpy)3]CI2 4 1 10
2 [Cu(dap)2]CI 5 1 10
3 fac-lr(ppy)3 6 2 43
4 [lr(dtbbpy)(ppy)2]PF6 7 2 33
5 [lr(dFCF3ppy)2(bpy)]PF6 8 2 54
6 fac-lr(Fppy)3 9 2 53
7 [lr(dtbbpy)(dtbppy)2]PF6 10 2 55
8 [lr(dmppy)2(dtbbpy)]PF6 11 2 59
9b fac-lr(ppy)3 6 2 0
10 none - 0 0
a

Yield determined by HPLC calibrated assay, 1 M concentration, 0.5 mmol 2, 2 equiv 1.

b

No light.