A novel method for protection and deprotection of the carbonyl groups in 1,2-indanedione by conversion to dioxa-dithiapropellanes
作者:Joseph Almog、Yirmi Zehavy、Shmuel Cohen
DOI:10.1016/s0040-4039(03)00622-1
日期:2003.4
two equivalents of 2-mercaptoethanol to produce, instead of the expected 1,2-bis(1,3-oxathiolane), a dioxa-dithia[4.4.3] propellane. Other 1,2-indanediones produce analogous compounds. The protecting groups are removed at room temperature with NBS in aqueous acetone, to produce the original diketone.
1,2-茚满二酮与两当量的2-巯基乙醇反应生成二恶英-二硫代[4.4.3]丙炔,而不是预期的1,2-二(1,3-氧杂硫杂环戊烷)。其他1,2-茚满二酮产生类似的化合物。在室温下用NBS在丙酮水溶液中除去保护基,以产生原始的二酮。