One-Pot, Two-Step Synthesis of Substituted Anthraquinones from Chromium(0) Alkynyl Carbenes and Isobenzofurans
作者:José Barluenga、Silvia Martínez、Angel L. Suárez-Sobrino、Miguel Tomás
DOI:10.1021/ol703037q
日期:2008.2.1
isobenzofurans gives rise to the corresponding [4 + 2] cycloadducts. The newly formed carbene adducts are suitable for benzannulation processes in the presence of tert-butylisocyanide or carbon monoxide to yield a variety of new highly substituted polycyclic structures having the anthraquinone framework. The whole two-step process is conducted in a one-pot fashion from easily available 1,4-dihydro-1,4-epoxynaphthalenes