反应条件
1.1: toluene-4-sulfonic acid / tetrahydrofuran / 36 h / 20 °C / |Inert atmosphere
2.1: sodium hydride; sodium iodide / tetrahydrofuran; mineral oil / 2 h / 0 °C / |Inert atmosphere
2.2: 12 h / |Reflux; |Inert atmosphere
3.1: toluene-4-sulfonic acid / methanol / 36 h / 20 °C / |Inert atmosphere
View Scheme
参考文献
Zhang, Quanxuan; Ren, Hong; Baker, Gregory L.
Tetrahedron Letters, 2014 , vol. 55, # 22 p. 3384 - 3386
