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Enyne synthesis through a modified Sonogashira cross-coupling reaction catalyzed by cyclopalladated complexes
- Source :
-
Tetrahedron . Jan2012, Vol. 68 Issue 1, p376-381. 6p. - Publication Year :
- 2012
-
Abstract
- Abstract: A series of conjugated enynes were successfully synthesized by the palladacycle-catalyzed modified Sonogashira cross-coupling reaction of β-bromostyrene and terminal alkynes. The reaction proceeds smoothly in DMSO at 40°C to give the corresponding products in moderate to excellent yields. This catalytic system is tolerant to a broad range of functional groups on the substrates. Moreover, the products were furnished as specific E isomers. We also found that the product of the reaction between (E)-β-bromostyrene and 2-methyl-3-butyn-2-ol is diarylated enyne in the presence of excess Cs2CO3. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00404020
- Volume :
- 68
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Tetrahedron
- Publication Type :
- Academic Journal
- Accession number :
- 67631823
- Full Text :
- https://doi.org/10.1016/j.tet.2011.09.110