Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Crystal Structure and Absolute Configuration of (−)-2,2′-Bisbromomethyl-1,1′-binaphthyl
Kazuaki HarataJiro Tanaka
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1973 Volume 46 Issue 9 Pages 2747-2751

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Abstract

Crystals of (−)-2,2′-bisbromomethyl-l′-binaphthyl have been subjected to crystal structure analysis in order to determine the absolute configuration of optically active 1,1′-binaphthyl derivatives. The crystals are orthorhombic, space group P212121 with Z=4 and the lattice constants are; a=10.360, b=13.052, c=13.178 Å. The structure was solved by the heavy atom method and the final R index was 0.064. The absolute configuration was determined as (S)-configuration by utilizing the anomalous dispersion effect of bromine atom.

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