Terminal Heck Vinylations of Chelating Vinyl Ethers
作者:Alexander Stadler、Henrik von Schenck、Karl S. A. Vallin、Mats Larhed、Anders Hallberg
DOI:10.1002/adsc.200404184
日期:2004.12
Heck vinylations of electron-rich amino-functionalized vinylethers were performed with high regioselectivity furnishing moderate to good isolated yields of the corresponding 1-alkoxy-1,3-butadienes. DFT calculations support an amine-palladium(II) coordination strength reactivity/selectivity rationale, where the dimethylamino group was the preferred metal presenting functionality. Controlled microwave