Diastereoselective Phenol <i>p</i><i>ara</i>-Alkylation: Access to a Cross-Conjugated Cyclohexadienone en Route to Resiniferatoxin
作者:Tobias Ritter、Pablo Zarotti、Erick M. Carreira
DOI:10.1021/ol0480832
日期:2004.11.1
strategy is based on an unprecedented diastereoselective, intramolecular phenol para-alkylation to a cross-conjugated cyclohexadienone. In the course of these synthetic studies we developed rapid access to a chiral nitrile possessing a quaternary stereocenter and disclose an unusual acetal rearrangement from a dioxane, which favors the corresponding dioxepane.
我们记录了一种合成功能密集的螺-融合的2,5-环己二烯酮作为合成reseferatoatoxin的中间体的途径。该策略基于前所未有的非对映选择性,分子内酚对烷基化为交叉共轭的环己二酮。在这些合成研究的过程中,我们迅速获得了具有四级立体中心的手性腈,并揭示了由二恶烷引起的不寻常的乙缩醛重排,这有利于相应的二恶庚烷。