A nordehydroabietyl amide-containing chiral diene for rhodium-catalysed asymmetric arylation to nitroolefins
作者:Ruikun Li、Zhongqing Wen、Na Wu
DOI:10.1039/c6ob02202b
日期:——
A highlyenantioselectiverhodium catalysed asymmetric arylation (RCAA) of nitroolefins with arylboronicacids is presented using a newly developed, C1-symmetric, non-covalent interacted, phellandrene derived, nordehydroabietyl amide-containing chiral diene under mild conditions. Stereoelectronic effects were studied, suggesting an activation of the bound substrate through the secondary amide as a
Stable and Reusable Palladium Nanoparticles-Catalyzed Conjugate Addition of Aryl Iodides to Enones: Route to Reductive Heck Products
作者:Naziya Parveen、Rajib Saha、Govindasamy Sekar
DOI:10.1002/adsc.201700823
日期:2017.11.10
efficient, binaphthyl‐backbone‐stabilized palladium nanoparticles (Pd‐BNP) catalyst for the 1,4‐addition of aryl halides to enones has been developed. The scope of the reaction has been studied with various substituted and sterically hindered aryl halides and enones to afford the conjugate additionproducts in good to excellent yields. The catalyst has been recovered and reused up to five times without
Palladium-Catalyzed Conjugate Addition of Organosiloxanes to α,β-Unsaturated Carbonyl Compounds and Nitroalkenes
作者:Scott E. Denmark、Nobuyoshi Amishiro
DOI:10.1021/jo034763r
日期:2003.9.1
aryltrialkoxysilanes to alpha,beta-unsaturated carbonylcompounds (ketones, aldehydes) and nitroalkenes in the presence of SbCl(3), TBAF, AcOH, and a catalytic amount of Pd(OAc)(2), in CH(3)CN at 60 degrees C, provides the corresponding conjugate addition products in moderate to good yields. The addition of equimolar amounts of SbCl(3) and TBAF is necessary for this reaction to proceed smoothly. The arylpalladium
Abstract Formation of stable and small-sized palladiumnanoparticles of diameter 9.4 nm was accomplished by a simple heating of Pd(OAc)2 in 1-octyl-1,2,4-triazolium trifluoroacetate ionicliquid under standard atmospheric hydrogen pressure. Palladiumnanoparticles were characterized by XRD, SEM, TEM, and EDX analysis techniques. The application of an addition reaction of arylboronic acid to nitrostyrenes provided
Multifunctional isoquinoline-oxazoline ligands of chemical and biological importance
作者:Wei Li、Guotong Wang、Jixing Lai、Shengkun Li
DOI:10.1039/c9cc01790a
日期:——
Multifunctional isoquinoline-oxazolines (MIQOXs) were conceived and synthesized from commercially available chiral amino acids. The multifunctional role of MIQOXs was demonstrated by Pd-catalyzed highly enantioselective addition of arylboronic acids to nitrostyrenes, and by the discovery of novel antifungal candidates.