Nickel, tris racemization structure

Nickel, tris(l, 10-phenanthroline) racemization, 1,24. 466 solid state, 1, 467 structure, 1,64 Nickel complexes, 5,1-300 acetylacetone alcoholysis, 2, 380 pyridine complexes, 2, 386 solvolysis, 2,379 structure, 2,388 amidines... 

Nickel, tris( 1,10-phenanthroline)-racemization, 24,466 solid state, 467 structure, 64 Nickel(I) complexes magnetic properties, 274 Nickel(II) complexes, 470 allogonism, 207 equilibrium constants solvent effect, 516 isomerism, 184 liquid-liquid extraction, 544 magnetic properties, 274 5-mcrcaptoamine alkydation, 417 photoreactivity, 407... 

In one report, the enantiomers of the racemic compound 73, whose structure resembles ketone 2a, were separated by fractional recrystallization of the optically active mandelic acid salts [43]. Although we tried to optically resolve the optically active mandelic acid salts of the racemic ketone ( )-2a, no satisfying results were obtained. After several trials, the (+)- or (-)-di-p-toluoyl tartrate salt prepared from ketone ( )-2a was effectively fractionally recrystallized and finally provided the optically active ketones (+)-2a and (-)-2a [42]. The chiral ketone (-)-2a was converted to compound 73 via compound 72 by thioacetalization followed by desulfurization using Raney nickel... 

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