作者:Long Wang、Daniel L. Priebbenow、Xiao Yun Chen、Fang-Fang Pan、Carsten Bolm
DOI:10.1002/ejoc.201500250
日期:2015.5
3-aminoacetophenone and (S)-S-methyl-S-phenylsulfoximine. By using a short reaction sequence, the 8-amino-2,1-benzothiazine derivative was readily prepared, which served as a valuable intermediate for the synthesis of additional derivatives. Initial experiments show that employing such compounds in copper-catalyzed asymmetric Mukaiyama-type aldol reactions provided products with moderate enantioselectivity.
介绍了一系列对映纯构象受限的苯并噻嗪和噻嗪喹啉衍生物的合成。主要原料是 3-氨基苯乙酮和 (S)-S-甲基-S-苯基亚砜亚胺。通过使用较短的反应序列,可以很容易地制备 8-氨基-2,1-苯并噻嗪衍生物,它是合成其他衍生物的有价值的中间体。初步实验表明,在铜催化的不对称 Mukaiyama 型羟醛反应中使用此类化合物可提供具有中等对映选择性的产物。