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. 2010 Oct 25;107(48):20661–20665. doi: 10.1073/pnas.1007469107

Table 5.

NHC-catalyzed reactions of methyl ketoenonegraphic file with name pnas.1007469107figX2.jpg

Entry R1 = % yield* d.r. % ee
1 Ph 94 > 20∶1 99
2 p-MeOC6H4 70 > 20∶1 99
3 2-furyl 54 > 20∶1 99
4 p-BrC6H4 88 > 20∶1 99
5 H 63 > 20∶1 99
6 n-C3H7 95 > 20∶1 94

*Isolated yield following chromatography.

Determined by 1H NMR of unpurified reaction mixtures.

Determined by SFC analysis on chiral stationary phases.