Synthesis of Spirocyclic Compounds by a Ring-Expansion/Cationic Cyclization Cascade Reaction of Chlorosulfate Derivatives
作者:Lara Cala、Rubén Rubio-Presa、Olaya García-Pedrero、Francisco J. Fañanás、Félix Rodríguez
DOI:10.1021/acs.orglett.0c01101
日期:2020.5.15
A novel cascade reaction to prepare spirocarbocyclic compounds from chlorosulfate derivatives has been developed. The process involves an unusual thermal elimination of the chlorosulfate moiety, a ring-expansion reaction, and a subsequent cationic cyclization reaction. Despite the relatively complex skeletal rearrangement, the reaction described here is featured by its operational simplicity, being
已经开发了一种新的级联反应,可以从氯硫酸盐衍生物制备螺碳环化合物。该方法涉及不寻常的热消除氯硫酸盐部分,环扩环反应和随后的阳离子环化反应。尽管骨架重排相对复杂,但此处描述的反应仍具有操作简便的特点,这只是一个不需要额外试剂,催化剂或添加剂的热处理过程。