Cesium carbonate → HCID 58109453, compound

Participants

Reaction Steps

A mixture of (R)-6-allyl-3-((S)-1-(4-bromophenyl)ethyl)-6-(2-fluorophenyl)-1,3-oxazinan-2-one (100 mg, 0.24 mmol) and 4-fluorophenylboronic acid (55 mg, 0.36 mmol), Pd(Ph3P)2Cl2 (20 mg), and aq Cs2CO3 solution (0.5 mL, 2 M) in 1,4-dioxane (10 mL) was stirred and heated to reflux for 2 h. The organic phase was separated, and concentrated to give the crude product, which was purified by preparative TLC to give (R)-6-allyl-3-((S)-1-(4′-fluorobiphenyl-4-yl)ethyl)-6-(2-fluorophenyl)-1,3-oxazinan-2-one (80 mg, 80%). 1H NMR (CDCl3): δ=1.49 (m, 3H), 2.13 (m, 1H), 2.32 (m, 1H), 2.50 (m, 1H), 2.69 (m, 2H), 2.89 (m, 1H), 5.00 (m, 2H), 5.75 (m, 2H), 6.91-7.10 (m, 6H), 7.15 (m, 1H), 7.22 (m, 2H), 7.38 (m, 2H), 7.48 (m, 1H).

Provenance & Evidence