Novel highly fluorescent dendritic chiral amines: synthesis and optical properties

Influence of substitution pattern and enhanced π-conjugation on a family of thiophene functionalized 1,5-dithia-2,4,6,8-tetrazocines

The versatile, one-pot synthesis of a series of π-extended 1,5,2,4,6,8-dithiatetrazocines is described, along with their optoelectronic and structural properties.

The Asymmetric Transfer Hydrogenation of Benzoylpyridine: Preparation and Crystal Structure of Chiral Heterocyclic Schiff Base Ligands

Two optically active heterocyclic imine ligands 3 (3a and 3b) have been synthesised for the iridium catalysed asymmetric transfer hydrogenation of 4-benzoylpyridine. 3b was characterised by single crystal X-ray diffraction analysis. The two ligands (3a and 3b) were applied to Ir-catalysed asymmetric transfer hydrogenation of 4-benzoylpyridine using 2-propanol as a source of hydrogen. The results showed that the corresponding chiral alcohol could be obtained with moderate yield and enantioselectivity at an optimum temperature.

Asymmetric synthesis of delta-substituted alpha,beta-unsaturated delta-lactams by ring closing metathesis of enantiomerically pure N-acryloyl-homoallylic amines

Optically pure secondary homoallylic amines, obtained by highly diastereoselective addition of allylmetal reagents to imines derived from chiral amines, were N-dealkylated, and the primary amines were converted to N-acryloyl amides. Then, ring closing metathesis gave delta-substituted delta-lactams in good overall yields.