Summary
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1.
cis- and trans-Octahydro-1-pyrindines differ greatly in rate of debenzoylation when heated with dry hydrogen chloride in dioxane.
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2.
The infrared spectra of N-benzoyl derivatives of cis-decahydroquinoline and cis-octahydro-1-pyrindine differ appreciably in the region 1630–1650 cm−1 from the spectra of benzamides of the trans series in the same region.
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3.
The infrared spectra of the iodine complexes of cis and trans isomers of decahydroquinoline and octahydro-1-pyrindine amides and the ultraviolet spectra of solutions of these amides in concentrated sulfuric acid are extremely similar.
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4.
Views are advanced concerning the predominating conformations of cis-1-benzoyldecahydroquinoline and cis-1-benzoyloctahydro-1-pyrindine.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2006–2009, November 1965
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Mistryukov, É.A. Debenzoylation and configurations of the isomeric 1-benzoyl-octahydro-1-pyrindines and decahydroquinolines. Russ Chem Bull 14, 1970–1973 (1965). https://doi.org/10.1007/BF00845892
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DOI: https://doi.org/10.1007/BF00845892