Origin of Life pp 347-353 | Cite as

Spontaneous and Induced Generation of Optical Activity in Racemic 4, 4′-Dimethyl-1, 1′-Binaphthyl

  • Richard E. Pincock
  • May D. Lu
  • Fu-Ning Fung
Conference paper


In contrast to the easy spontaneous generation of optically active samples of 1, 1′-binaphthyl by crystallization from a melt, the 4, 4′-dimethyl derivative of binaphthyl (DMB) does not undergo a similar transformation to a chiral form. However, the presence of chiral crystals of 4, 4′-diaminobinaphthyl stereospecifically induces the resolution of DMB at temperatures where the optically active product is unstable. Although thermodynamic control leads to the stable (optically inactive) racemate form of DMB, kinetic control of nucleation and crystal growth gives rise to eutectic crystals and to optically active samples of DMB.


Optical Activity Active Sample Mandelic Acid Racemate Form Eutectic Form 
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Copyright information

© D. Reidel Publishing Company 1981

Authors and Affiliations

  • Richard E. Pincock
    • 1
  • May D. Lu
    • 1
  • Fu-Ning Fung
    • 1
  1. 1.Department of ChemistryUniversity of British ColumbiaVancouverCanada

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