2H-Pyran, 2-ethynyltetrahydro- → HCID 57608474, compound

Participants

Reaction Steps

Sonogashira reaction of 106 with 2-ethynyltetrahydro-2H-pyran yielded tert-butyl 3-hydroxy-3-(3-((tetrahydro-2H-pyran-2-yl)ethynyl)phenyl)propylcarbamate (107) as dark brown oil. Yield (1.21 g, 83%): 1H NMR (400 MHz, CDCl3) δ 7.45 (s, 1H), 7.27-7.35 (m, 3H), 4.87 (bs, 1H), 4.69-4.71 (m, 1H), 4.49-4.51 (m, 1H), 4.02-4.07 (m, 1H), 3.50-3.52 (m, 1H), 3.56-3.61 (m, 1H), 3.13-3.18 (m, 1H), 1.91-1.93 (m, 2H), 1.74-1.86 (m, 4H), 1.51 (m, 2H), 1.43 (s, 9H).

Provenance & Evidence