Molecular chirality by isotopic substitution. Synthesis, absolute configuration and circular dichroism spectra of13C-substituted chiral diphenylmethanol

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13C-Substituted chiral diphenylmethanol, α-phenylbenzene[1,2,3,4,5,6-13C6]methanol, [CD(−)270]-(S)-3, was synthesized from 4-bromo-α-(phenyl[1,2,3,4,5,6-13C6])benzenemethanol (4), which was enantioresolved by the chiral phthalic acid method. The S absolute configuration of [CD(−)270]-3 was unambiguously determined by x-ray crystallography of camphanic acid ester of (−)-4. Copyright © 2000 John Wiley & Sons, Ltd.

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