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The first separation of an optically active 1,3-diphospha-allene of axial dissymmetry
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1986
Year
First TimePhotonicsOptical MaterialsOptically PureEngineeringPhysicsAxial DissymmetryOptical PropertiesNatural SciencesTriphenylmethyl MethacrylateApplied PhysicsEnantioselective SynthesisClassical OpticsOrganic ChemistryFirst SeparationChemistryActive 1,3-Diphospha-alleneBiophysics
Separation of enantiomers of axially dissymmetric 1,3-bis(2,4,6-tri-t-butylphenyl)-1,3-diphospha-allene was successful for the first time by h.p.l.c. with a chiral (+)-poly(triphenylmethyl methacrylate) column and the c.d. spectrum of the optically pure (–)-phospha-allene was recorded; racemization occurred on exposure to light but the rate was very slow in the dark.