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Palladium-catalyzed highly regio- and stereoselective synthesis of (1E)- or (1Z)-1,2-dihalo-1,4-dienes via haloallylation of alkynyl halides

✍ Scribed by Chen, Xiaoyi; Kong, Wei; Cai, Haiting; Kong, Lichun; Zhu, Gangguo

Book ID
126010048
Publisher
Royal Society of Chemistry
Year
2011
Tongue
English
Weight
664 KB
Volume
47
Category
Article
ISSN
1359-7345

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ChemInform Abstract: Palladium-Catalyzed
ChemInform Abstract: Palladium-Catalyzed Highly Regio- and Stereoselective Synthesis of (1E)- or (1Z)-1,2-Dihalo-1,4-dienes via Haloallylation of Alkynyl Halides.
✍ Xiaoyi Chen; Wei Kong; Haiting Cai; Lichun Kong; Gangguo Zhu πŸ“‚ Article πŸ“… 2011 πŸ› John Wiley and Sons βš– 31 KB

## Abstract The palladium‐catalyzed haloallylation of alkynes (I) in dichloromethane leads stereoselectively to (E)‐dihalodienes (III), whereas (Z)‐isomers (IV) are readily obtained by the same reaction in acetic acid in the presence of lithium halides.

Palladium-catalyzed stereoselective synt
Palladium-catalyzed stereoselective synthesis of E- and Z-1,1-diaryl or triarylolefins
✍ FrΓ©dΓ©ric Liron; Marina Gervais; Jean-FranΓ§ois Peyrat; MouΓ’d Alami; Jean-Daniel B πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 French βš– 863 KB

A stereoselective and flexible synthesis of various E-and Z-1,1-diaryl and triarylolefins 3 was achieved from readily available vinylstannanes 1 via stereospecific iodo-destannylation and subsequent palladium-catalyzed Negishi-type cross-coupling reaction with arylzinc reagents under mild conditions