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Long-range magnetic coupling through extended pi-conjugated aromatic bridges in dinuclear copper(II) metallacyclophanes.
Density functional theory calculations on these compounds and their homologues with linear oligo-p-phenylenediamide bridges predict a rather slow exponential decay of magnetic coupling with increasing intermetal distance along this novel series of dicopper metalla-amidocyclophanes. Expand
New highly asymmetric Henry reaction catalyzed by Cu(II) and a C(1)-symmetric aminopyridine ligand, and its application to the synthesis of miconazole.
A new catalytic asymmetric Henry reaction has been developed that uses a C(1)-symmetric chiral aminopyridine ligand derived from camphor and picolylamine that is air-tolerant and has been used in the synthesis of the antifungal agent miconazole. Expand
A Short Synthesis of (+)-Colartin and (+)-Arbusculin A from (-)-Santonin
Colartin [8] and arbusculin A [9] have been synthesized from α-santonin [1] in 18.2% (8 steps) and 12.9% (10 steps) overall yields, respectively
Organocatalytic asymmetric addition of naphthols and electron-rich phenols to isatin-derived ketimines: highly enantioselective construction of tetrasubstituted stereocenters.
The reaction afforded chiral 3-amino-2-oxindoles with a quaternary stereocenter in high yields with excellent enantioselectivity (up to 99% ee). Expand
Highly enantioselective Friedel-Crafts alkylations of indoles with simple enones catalyzed by zirconium(IV)-BINOL complexes.
Complexes of BINOL-based ligands with Zr(OtBu)4 catalyze the Friedel-Crafts alkylation reaction of indoles and pyrrole with nonchelating beta-substituted alpha,beta-enones at room temperatureExpand
A convenient procedure for the catalytic asymmetric 1,3-dipolar cycloaddition of azomethine ylides and alkenes.
[reaction: see text] Silver fluoride and cinchona alkaloids catalyze the diastereo- and enantioselective 1,3-dipolar cycloaddition between azomethine ylides, generated from N-alkylideneglycineExpand
Synthesis of functionalized indoles with a trifluoromethyl-substituted stereogenic tertiary carbon atom through an enantioselective Friedel-Crafts alkylation with
Chiral complexes of BINOL-based ligands with zirconium tert-butoxide catalyze the Friedel-Crafts alkylation reaction of indoles with beta-trifluoromethyl-alpha,beta-unsaturated ketones to giveExpand
Catalytic asymmetric conjugate addition of terminal alkynes to β-trifluoromethyl α,β-enones.
The first enantioselective conjugate alkynylation of β-trifluoromethyl α,β-enones using terminal alkynes and a taniaphos-Cu(I) complex as catalyst is described. Ketones bearing a trifluoromethylatedExpand