Abstract
(Chemical Equation Presented) Efficient synthetic routes to construct multisubstituted benzo[1,2-b:5,4-b′]difurans and benzo[1,2-b:4,5-b′] difurans from bis(allyloxy)bis(alkynyl)benzenes or bis(alkynyl)dihydroxybenzenes and allylic halides utilizing palladium-catalyzed double annulations is reported. By further applying a double ring-closing metathesis reaction, pentacyclic compounds were also prepared.
Original language | English |
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Pages (from-to) | 9219-9224 |
Number of pages | 6 |
Journal | Journal of Organic Chemistry |
Volume | 72 |
Issue number | 24 |
DOIs | |
Publication status | Published - 23 Nov 2007 |
Externally published | Yes |