Double Functionalization of <i>N</i>-Boc-3-(Tosylmethyl)indole Exploiting
the Activating Properties of the Tosyl Group
作者:Marino Petrini、Alessandro Palmieri、Rafik Shaikh
DOI:10.1055/s-2008-1078510
日期:——
The anion prepared from N-Boc-3-(tosylmethyl)indole using NaH in DMF can be readily functionalized by reaction with various electrophiles. The obtained sulfonyl indoles, upon removal of the N-protecting group, undergo nucleophilic attack via a vinylogous imino derivative, leading to branched 3-substituted indoles.
用NaH在DMF中制备的N-Boc-3-(tosylmethyl)吲哚的阴离子可以通过与各种电亲体反应进行容易的功能化。去除N保护基后的磺酰吲哚,通过vinyl基亚胺衍生物发生亲核攻击,形成支链3-取代吲哚。