Some insights into the gold-catalysed A 3 -coupling reaction
作者:Gregory A. Price、Alan K. Brisdon、Simon Randall、Edward Lewis、Daniel M. Whittaker、Robin G. Pritchard、Chris A. Muryn、Kevin R. Flower、Peter Quayle
DOI:10.1016/j.jorganchem.2017.06.019
日期:2017.10
application to A3-coupling reactions is presented. Gold(III) complexes were found to be particularly effective catalysts for the coupling in a range of solvents, however no asymmetric induction was obtained when using chiral gold complexes and the rate of product formation was found to be similar even when using different ligand systems. In-situ NMR analysis of these reactions indicates that decomposition
Synthesis of Aminoindolizine and Quinoline Derivatives via Fe(acac)3/TBAOH-Catalyzed Sequential Cross-Coupling-Cycloisomerization Reactions
作者:Vivek Bobade、Sachin Patil、Sachin Patil
DOI:10.1055/s-0030-1260305
日期:2011.10
Fe(acac)3/TBAOH-catalyzed three-component coupling-cycloisomerization reaction of aldehydes, terminal alkynes, and amines provides a diverse range of heterocyclic compounds such as aminoindolizines and quinoline derivatives.
Synthetic and Mechanistic Studies on the Solvent-Dependent Copper-Catalyzed Formation of Indolizines and Chalcones
作者:María José Albaladejo、Francisco Alonso、María José González-Soria
DOI:10.1021/acscatal.5b00417
日期:2015.6.5
formation from aldehydes and alkynes, a new reaction pathway involving propargyl amines as intermediates that do not undergo rearrangement is presented. The formation of indolizines or chalcones is driven by inductive and solvent effects, with a wide array of both being reported. In both reactions, the nanoparticulate catalyst has been shown to be superior to some commercially available copper catalysts
Quick Access to Druglike Heterocycles: Facile Silver-Catalyzed One-Pot Multicomponent Synthesis of Aminoindolizines
作者:Yaguang Bai、Jing Zeng、Jimei Ma、Bala Kishan Gorityala、Xue-Wei Liu
DOI:10.1021/cc100086h
日期:2010.9.13
Desired products were obtained in moderate to excellent yields. Similar aminoindolizines products were afforded from trimethylsilyl protected alkyne substrates as well. This methodology provides a rapid access to construct a diversity-oriented library of indolizines.
Synthesis of Aminoindolizidines through the Chemoselective and Diastereoselective Catalytic Hydrogenation of Indolizines
作者:María José Albaladejo、María José González-Soria、Francisco Alonso
DOI:10.1021/acs.joc.6b01782
日期:2016.10.21
synthesis of indolizines followed by heterogeneous catalytic hydrogenation. The latter was found to be chemoselective using platinum(IV) oxide as the catalyst at 3.7 atm, providing the aminoindolizidines in modest-to-high yields (35–95%) and high diastereoselectivity (92:8 to >99:1). It has been experimentally demonstrated that the hydrogenation occurs through the intermediate 5,6,7,8-tetrahydroindolizine