Complementary stereoselective cyclisations of N-(3,4-dimethoxybenzyl)ephedrine and its chromium tricarbonyl complex to trans- and cis-2,3-dimethyl-4-phenyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolines respectively
- 1 January 1988
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 10,p. 648-649
- https://doi.org/10.1039/c39880000648
Abstract
Acid promoted cyclisations of N-(3,4-dimethoxybenzyl)ephedrine and its chromium tricarbonyl complex occur with completely complementary stereoselectivities to give exclusively trans-(–)- and cis-(+)-2,3-dimethyl-4-phenyl-6,7-dimethoxytetrahydroisoquinolines respectively.Keywords
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