Gold(I)-catalyzed intramolecular hydroamination of O-propargyl-N-Boc-hydroxylamine is reported. The present method provides a novel, catalytic, and mild approach to 2,5-dihydroisoxazole derivatives. In addition, a mechanism of N-O cleavage as a side reaction as well as desired cyclization is proposed.
报道了
金 (I) 催化的 O-炔丙基-N-Boc-
羟胺的分子内
氢胺化。本方法提供了一种新颖、催化且温和的方法来制备 2,5-二氢
异恶唑衍
生物。此外,还提出了作为副反应的 N-O 裂解以及所需环化的机制。