An Expeditious Assembly of 3,4-Benzannulated 8-Oxabicyclo[3.2.1]octane Systems by [2+2+2] Alkyne Cyclotrimerisation: Total Synthesis of (–)-Bruguierol A
作者:Chepuri V. Ramana、Sumanth R. Salian、Rajesh G. Gonnade
Synthesis of 5,8-dimethoxynaphtho[2,3-c]furan-4(9H)-one
作者:Matthew J. Piggott、Dieter Wege
DOI:10.1016/j.tet.2006.01.096
日期:2006.4
The synthesis of the title compound, which shares its skeleton with a number of biologically active natural products, is described. The key steps are construction of a 3,4-disubstituted furan by a tandem Diels-Aider-retro-Diels-Alder reaction of an alkyne with 4-phenyloxazole, and an intramolecular Friedel-Crafts acylation. (c) 2006 Elsevier Ltd. All rights reserved.