Abstract
An efficient Pd(0)-mediated, base-assisted reaction of phenols with difunctionalised allylic halides results in the formation of coupled products in good yields. The reactions proceed with excellent stereo-, regio- and chemocontrol. An appropriately functionalised Weinreb amide, synthesised by this methodology, undergoes halogen-lithium exchange and subsequent intramolecular 1,2-carbonyl addition/elimination to give an advanced macrocyclic intermediate with potential use in the synthesis of likonide B. (C) 2010 Elsevier Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 6378-6380 |
Number of pages | 3 |
Journal | Tetrahedron Letters |
Volume | 51 |
Issue number | 49 |
DOIs | |
Publication status | Published - 8 Dec 2010 |
Keywords
- Pd(0)-mediated reactions
- Allylic substitution
- Bifunctional allylic halides
- Regioselective
- Chemoselective
- LIKONIDE-B
- CATALYZED 1,4-DIACETOXYLATION
- PROTEIN PRENYLATION
- FARNESOL ANALOGS
- THP ETHERS
- LIGAND
- (+/-)-SMENOCHROMENE-D
- TRANSFERASE
- METHYLATION
- DIPHOSPHATE