中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
beta-苯基-查耳酮 | 1,3,3-triphenylprop-2-en-1-one | 849-01-4 | C21H16O | 284.357 |
An efficient K2CO3-mediated intramolecular oxa-Michael cyclization of β,β-diarylated α,β-unsaturated ketoximes is described. This methodology allows access to arene-rich 2-isoxazoline derivatives bearing a quaternary center in excellent yields with an operationally simple experimental procedure. Deuterium-scrambling experiments were carried out to shed light on the reaction pathway. To demonstrate the synthetic utility of the method, a large-scale synthesis and Ullmann-type C–N bond-formation reaction between pyrazole and dibrominated isoxazoline was performed.