3-Aryltetrahydrobenzisoxazoles prepared en route to the coleophomone natural products and analogues, were found to undergo a remarkable base-mediated rearrangement to 2-aryltetrahydrobenzoxazoles. The scope of this unprecedented, facile transformation was probed: a range of analogues was produced, a mechanism proposed, and an application demonstrated by synthesis of a known herbicidal compound.
发现在制备鞘
磷脂天然产物和类似物过程中制备的3-芳基四氢
苯并恶唑会发生明显的碱基介导的重排反应,生成2-芳基四氢
苯并恶唑。探索了这种前所未有的,容易的转化的范围:产生了一系列类似物,提出了一种机制,并通过合成已知的除草化合物证明了其应用。