کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1327299 | 977473 | 2005 | 6 صفحه PDF | دانلود رایگان |
Palladium-catalyzed Heck reactions of the heteroaryl halides, halopyridines, bromoquinoline and bromothiophenes, with the electron-rich olefins vinyl ethers and allyl alcohol were shown to give essentially only the branched olefins in an imidazolium ionic liquid, whereas in molecular solvents a mixture of regioisomers was formed. The method obviates the need for aryl triflates and stoichiometric inorganic salt additives, providing an easy entry to functionalized heteroaromatics incorporating acetyl and 2-allyl alcohol functionalities.
The Heck reactions of heteroaryl halides with the electron-rich olefins vinyl ethers and allyl alcohol afforded essentially only the branched products in an imidazolium ionic liquid, whereas in molecular solvents a mixture of regioisomers was formed.Figure optionsDownload as PowerPoint slide
Journal: Journal of Organometallic Chemistry - Volume 690, Issue 15, 1 August 2005, Pages 3546–3551