Table 1.
Observed: 2a - HDF, amine addition, C-O coupling, 2b and 2c - HDF, oxidized prenylation, [3,3]-rearrangement, 2d - >90% HDF, 2e - HDF, C-O coupling, multiple side products, 2f - mostly HDF, multiple side products, 2g - HDF, incomplete conversion, 2h - HDF, multiple side products, 2i - HDF, 2j - HDF, 2k - HDF. No further conversion to product over extended time.