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1 Polish Journal of Chemistry

1 2007

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An Approach to Asymmetric Synthesis of New Pyridine Aminophosphine Oxides. Preparation of the Diastereomerically Pure 1-(Pyridine-3-yl)-1-[N-(alfa- methyl benzyl amino)]-methyl-diphenylphosphine Oxides and 1-(Pyridine-3-yl)-1-[N-(alfa-methylbenzylamino)]

Guzik M., Olszewski T. K., Boduszek B.

Polish Journal of Chemistry

2007

Vol. 81, nr 11

1879-1885

A series of diastereomerically pure aminophosphine oxides derived from pyridine- 3-carboxaldehyde and chiral amine was synthesized. The aminophosphine oxides were obtained by an addition reaction of the diphenylphosphine oxide or racemic t-butylphenylphosphine oxide to the optically active, corresponding chiral aldimines, which were obtained from pyridine-3-carboxaldehyde and enantiomers of alfa-methyl benzyl - amine. The formed diastereomers were easy separated by crystallization from acetone.