2,2'-Bis(dicyclohexylphosphino)-1,1'-biphenyl → N-{4-[(1,1-dioxidothiomorpholin-4-yl)methyl]phenyl}-8-[4-(methylsulfonyl)phenyl][1,2,4]triazolo[1,5-a]pyridin-2-amine

Participants

Reaction Steps

N-{4-[(1,1-dioxidothiomorpholin-4-yl)methyl]phenyl}-8-[4-(methylsulfonyl)phenyl][1,2,4]triazolo[1,5-a]pyridin-2-amine was prepared from 8-(4-methanesulfonyl-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine (75.0 mg, 0.260 mmol) and 4-(4-bromo-benzyl)-thiomorpholine 1,1-dioxide (90.0 mg, 0.296 mmol) with 2,2′-bis-dicyclohexylphosphanyl-biphenyl (25.0 mg, 0.0457 mmol) as the ligand in a manner analogous to Example 2d. Product isolated as a pale yellow foam (0.039 g, 29%). 1H NMR (400 MHz, CDCl3, δ, ppm): 8.50 (d, J=6.7 Hz, 1H), 8.23 (d, J=7.4 Hz, 2H), 8.09 (d, J=8.0 Hz, 2H), 7.67 (d, J=6.9 Hz, 1H), 7.56 (d, J=7.2 Hz, 2H), 7.29 (d, J=7.8 Hz, 2H), 7.04 (t, J=7.2 Hz, 1H), 6.94 (s, 1H), 3.62 (s, 2H), 3.10 (s, 3H), 3.08-3.03 (m, 4H), 3.02-2.97 (m, 4H). MS=512 (MH)+.

Provenance & Evidence