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(a) CH2Cl2, Py, Tf2O, (b) ArB(OH)2, LiCl, DCE, Pd(PPh3)4, (c) compounds 10, 12–15: RNH2, DCE, NaBH(OAc)3, (d) compounds 11, 16–18: RNH3+, MeOH, Et3N, NaBH(OAc)3, (e) Et2O, 2 M HCl in Et2O. General procedures are detailed in the Supporting information.
