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Synthesis and structures of molecular complexes of the cis-anti-cis diastereomer of dicyclohexano-18-crown-6 with o-nitroanilines

✍ Scribed by é. V. Ganin; V. F. Makarov; S. A. Kotlyar; N. G. Luk'yanenko; M. S. Fonar'; A. A. Dvorkin; Yu. A. Simonov

Publisher
Springer US
Year
1988
Tongue
English
Weight
482 KB
Volume
24
Category
Article
ISSN
0009-3122

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✦ Synopsis

In the reaction of the cis-syn-cis and cis-anti-cis diastereomers of dicyclohexano-18-crown-6 with 2-nitro and 2,4-dinitroaniline crystallin e complexes with a 1:2 stoichiometric composition were obtained only when the cis-anti-cis diastereomer was used. The three-dimensional structure of the complex of the cis-anti-cis diastereomer of dicyclohexano-18-crown-6 with 2,4-dinitroaniline was determined by an x-ray diffraction study. The complexing of o-nitroanilines with the cis-anti-cis diastereomer is explained by the topological conformity of the interacting compounds.

The isolation of the individual cis diastereomers from the mixture of them formed as a result of the catalytic hydrogenation of dibenzo-18-crown-6 was accomplished by means of the selective formation of the crystalline complex of the cis-anti-cis diastereomer with 2-nitroanilineo

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Stereospecific synthesis of cis–trans-di
Stereospecific synthesis of cis–trans-dicyclohexano-18-crown-6 and K+ complexation by the five dicyclohexano-18-crown-6 isomers
✍ Kazuhiro Yamato; Fernando A Fernandez; Howard F Vogel; Richard A Bartsch; Mark L 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 180 KB

Stereospecific syntheses of the cis-trans-isomer of dicyclohexano-18-crown-6 allows the K + complexation behavior of all five dicyclohexano-18-crown-6 isomers to be compared.