Novel concise synthesis of 2-substituted 3,4-dihydro-2H-1,4-benzoxazines by ring opening of glycidols under solid-liquid phase transfer catalysis conditions†
作者:Domenico Albanese、Dario Landini、Michele Penso
DOI:10.1039/a906260b
日期:——
The ring opening of glycidols with N-(2-fluorophenyl)toluene-p-sulfonamide under SL-PTC conditions, followed by ring closure with ButOK, provides a novel high yielding synthesis of 2-substituted 3,4-dihydro-2H-1,4-benzoxazines.
在 SL-PTC 条件下,用 N-(2-氟苯基)甲苯-对磺酰胺打开缩水甘油的环,然后用 ButOK 进行闭环,可以高产合成 2-取代的 3,4-二氢-2H-1,4-苯并噁嗪。