Synthetic Studies Towards the Total Synthesis of Olivin Using Fischer Carbene Complexes: Synthesis of the 1,6,8-Trioxygenated Tricyclic Core via the Benzannulation Reaction
作者:Ross A. Miller、Adam M. Gilbert、Song Xue、William D. Wulff
DOI:10.1055/s-1999-3670
日期:——
A synthesis of a model for the tricyclic core of olivin is developed which begins with the benzannulation of a 2,4-dioxygenated aryl Fischer carbene complex. Completion of the synthesis of the model system involves an intramolecular Friedel-Crafts cyclization and a triflate reduction of the oxygen substituent at the C-10 position. The proper choice of oxygen substituents on the carbene complex will permit this strategy to be utilized in the synthesis of olivomycin A where the oxygens in the C-2 and C-6 positions will need to be differentiated.
首先对 2,4-二氧 化芳基 Fischer 碳络合物进行苯化反应。该模型体系的合成涉及分子内 Friedel-Crafts 环化和 C-10 位氧取代基的三酯还原。适当选择碳烯络合物上的氧取代基,就能将这一策略用于合成橄榄霉素 A,其中 C-2 和 C-6 位上的氧需要加以区分。