An X-Ray Crystallographic Study on cis-trans Configurational Assignment to “cis-” and “trans-1,8-Terpins” and a Proposal of New Designation for Discriminating between the Configurational Isomers
- 1 March 1982
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 55 (3) , 914-917
- https://doi.org/10.1246/bcsj.55.914
Abstract
The crystal structures of “cis-terpin” (terpin hydrate) and “trans-terpin” were elucidated by X-ray crystallography. This crystal structure elucidation showed that the hydroxyl group at C-1 and the 1-hydroxy-1-methylethyl group at C-4 are in cis and trans relationships in the “cis-” and “trans-1,8-terpin” molecules, respectively, similarly to the structures in solutions. A new designation for discriminating between the configurational isomers is proposed on the ground of the IUPAC Rule for Nomenclature.Keywords
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