A one-pot two-step fashion for the synthesis of 3-trifluoromethyl-1,4-benzoxazines from CF3-imidoyl sulfoxonium ylides and 2-bromophenols via lithium-bromide-promoted O–H insertion of sulfoxonium ylides and annulation has been demonstrated.
一种一锅两步法合成3-三氟甲基-1,4-苯并噁唑的方法已被证明,该方法是通过CF3-亚硫酰基叶立德和2-溴苯酚在锂溴促进下进行亚硫酰基叶立德的O-H插入和环化反应实现的。