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Recherches dans la série des cyclitols XXXVIII Etudes conformationnelles de dérivés cyclopenténiques disubstitués-3, 5

✍ Scribed by F. G. Cocu; G. Wolczunowicz; L. Bors; Th. Posternak


Publisher
John Wiley and Sons
Year
1970
Tongue
German
Weight
707 KB
Volume
53
Category
Article
ISSN
0018-019X

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✦ Synopsis


Abstract

Cyclopentenones substituted in position 4, and 3, 5‐cis or ‐trans disubstituted cyclopentenes have been studied by NMR. and by IR. spectroscopy. Cyclopentenone derivatives and cyclopentene derivatives adopt a quasi‐coplanar and an envelope conformation, respectively. The preferential orientation of the substituents has been established according to their nature and to the solvents by correlation to the vicinal and the long‐range coupling constants.


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