Palladium-Catalyzed Substitution of Allylic Fluorides
作者:Amaruka Hazari、Véronique Gouverneur、John M. Brown
DOI:10.1002/anie.200804310
日期:2009.2.2
As unusual substrates for the Tsuji–Trost allylation reaction, allylicfluorides are responsive to palladium‐catalyzed substitution. Their activity towards this reaction fits in the series OCO2Me>OBz≫F≫OAc. The classic stereoretention mechanism that involves sequential inversions does not operate in this case. Several distinct cases are considered.
作为Tsuji–Trost烯丙基化反应的不常见底物,烯丙基氟化物对钯催化的取代反应敏感。它们对该反应的活性符合OCO 2 Me> OBz≫ F ≫OAc系列。在这种情况下,涉及顺序倒置的经典立体保留机制不起作用。考虑了几种不同的情况。
Palladium Assisted Alkylation-Insertion Reactions of Chiral Ene-Carbamates
作者:Guy J. Laidig、Louis S. Hegedus
DOI:10.1055/s-1995-3960
日期:1995.5
Palladium(II) complexes of chiral ene-carbamate 2 underwent efficient, stereoselective alkylation by malonate carbanions having pendent unsaturated side chains. The resulting Ï-alkylpalladium(II) complexes underwent efficient insertion of carbon monoxide to produce esters. Insertion of the pendent unsaturated groups was less efficient, and led to mixtures of insertion products with little stereoselectivity.
STEREOSELECTIVE 1,4-FUNCTIONALIZATIONS OF CONJUGATED DIENES: cis- AND trans-1-ACETOXY-4-(DICARBOMETHOXYMETHYL)-2-CYCLOHEXENE
作者:Bäckvall, Jan-E.、Vågberg, Jan O.
DOI:10.15227/orgsyn.069.0038
日期:——
Stereo- and regioselective palladium-catalyzed 1,4-acetoxychlorination of 1,3-dienes. 1-Acetoxy-4-chloro-2-alkenes as versatile synthons in organic transformations
作者:Jan E. Baeckvall、Jan E. Nystroem、Ruth E. Nordberg