Copper‐Catalyzed Aminothiolation of 1,3‐Dienes via a Dihydrothiazine Intermediate
作者:Christopher E. Sleet、Uttam K. Tambar
DOI:10.1002/anie.201701796
日期:2017.5.8
medicinal chemists and materials scientists. A strategy to reach these architectures via direct difunctionalization of abundant 1,3‐dienes is especially attractive. Herein, we describe the development of a regio‐ and diastereoselective 1,4‐aminothiolation of 1,3‐dienes with a sulfur diimide reagent, a copper catalyst, and alkyl Grignard reagents. This unique protocol provides remote nitrogen and sulfur
含杂原子的有机分子是药物化学家和材料科学家特别感兴趣的。通过将大量的1,3-二烯直接双官能化来达到这些体系结构的策略特别有吸引力。在本文中,我们描述了用硫二酰亚胺试剂,铜催化剂和烷基格氏试剂对1,3-二烯进行区域和非对映选择性1,4-氨基硫醇化的过程。这种独特的协议提供了具有高水平立体控制功能的远程氮和硫功能。反应通过N,N'-双(苯磺酰基)硫二酰亚胺与1,3-二烯的串联异狄尔斯-阿尔德环加成反应进行,然后进行铜催化的格利雅(Grignard)取代。机理研究表明,铜催化形成了前所未有的[10-S-4]硫烷,该硫被还原消除,得到3,