Reactions of 5-Aminoisoxazoles with α-Diazocarbonyl Compounds: Wolff Rearrangement vs N–H Insertion
作者:Yun Ge、Wangbin Sun、Yang Chen、Yulin Huang、Zhuang Liu、Yaojia Jiang、Teck-Peng Loh
DOI:10.1021/acs.joc.8b02986
日期:2019.3.1
chemoselective reaction between 5-aminoisoxazoles and α-diazocarbonyl compounds has been described. Both Wolff rearrangement and N–H insertion products can be obtained selectively by the judicious choice of reaction conditions. In the case of the Wolff rearrangement reactions, the N-isoxazole amides are accessed as the sole products under thermal conditions. On the other hand, α-amino acid derivatives
已经描述了5-氨基异恶唑和α-重氮羰基化合物之间的高度化学选择性反应。通过明智地选择反应条件,可以有选择地获得Wolff重排和N–H插入产物。在沃尔夫夫重排反应的情况下,在热条件下,N-异恶唑酰胺是唯一的产物。另一方面,在催化性Rh 2(Oct)4的存在下,可以通过NH插入反应获得N-异恶唑的α-氨基酸衍生物。两种反应均在温和的反应条件下进行,并具有广泛的底物范围。