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NMR spectra and stereochemistry of 6- and 7-substituted cyclopenta [d][1,3]dioxanes

✍ Scribed by Trevor A. Crabb; Manuchehr Porssa; Asmita V. Patel; Norman F. Elmore

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
459 KB
Volume
31
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The reaction between 6‐ and 7‐ketocyclopenta[d] [1,3]dioxane and methyl‐phenylmagnesium bromide gave in each case only one isomer of the 6‐hydroxy‐6‐methyl‐phenyl‐ and 7‐hydroxy‐7‐methyl‐phenylcyclopenta [d] [1,3]dioxanes. The configurations of these derivatives were determined from a detailed analysis of the ^1^H NMR spectra. All the compounds were found to adopt the O‐inside cis‐fused conformations.

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