作者:Takayoshi Fujii、Wei Hao、Toshiaki Yoshimura
DOI:10.1002/hc.20010
日期:——
The S-amination of 9H-thioxanthen-9-ol (2a) and 9-substituted derivatives 2b–e (Me (b), Et (c), iPr (d), Ph (e)) with O-mesitylenesulfonylhydroxylamine (MSH) was carried out. The expected product, 10-amino-9-hydroxy-9-isopropyl-9H-thioxanthenium mesitylenesulfonate (3d), was obtained in 78(%) yield from the corresponding thioxanthen(9)-ol 2d. However, in the case of 2a–c and 2e the reaction led instead
9H-噻吨-9-醇 (2a) 和 9-取代衍生物 2b-e(Me (b)、Et (c)、iPr (d)、Ph (e))与 O-均三甲苯磺酰基羟胺 (MSH) 的 S-胺化) 进行。从相应的噻吨 (9)-醇 2d 中以 78(%) 的产率获得了预期的产物 10-氨基-9-羟基-9-异丙基-9H-噻吨三甲基磺酸盐 (3d)。然而,在 2a-c 和 2e 的情况下,反应以中等产率生成二苯并[b,f][1,4]硫氮杂 6a-c 和 6e。© 2004 Wiley Periodicals, Inc. 杂原子化学 15:246–250, 2004; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20010