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Stereochemical arrangement of spiro[4.5]decane derivatives by 15N and 17O NMR spectroscopy

✍ Scribed by Armando Ariza-Castolo; Joseantonio Godoy-Reyes

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 104 KB
Volume: 37
Category: Article
ISSN: 0749-1581
DOI: 10.1002/(sici)1097-458x(199903)37:3<219::aid-mrc425>3.0.co;2-7

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✦ Synopsis

The relative axialÈequatorial position of spiro[4.5]decanes substituted in the 1,4-positions by oxygen or nitrogen were assigned by 15N and 17O NMR spectroscopy. The substituent, chemical exchange and steric e †ects upon the chemical shifts are discussed. A linear relationship between 15N and 17O was found and the relative conÐguration of the chiral spiro atom was determined.

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