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Conformational preference of substituted naphthalenes: 1—Aldehyde derivatives of naphthalene

✍ Scribed by Salman R. Salman

Publisher
John Wiley and Sons
Year
1983
Tongue
English
Weight
322 KB
Volume
21
Category
Article
ISSN
0749-1581

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✦ Synopsis

Long-range proton-proton coupling constants between the aldehyde proton and the ring protons were used to deduce the confonnational preference of 1-naphthaldehyde, 2-naphthaldehyde, 2-hydroxy-1-naphthaldehyde, 2-methoxy-1-naphthaldehyde and 1-bromo-2-naphthaldehyde. Molecular orbital calculations at the CNDOI2 and INDO level were used to calculate the stabitity and the long-range proton-proton couplings of different conformers of 1and 2-naphthaldehyde. The Z conformer was found to be more stable in 1-naphthaldehyde and the E conformer was more stable in 2-naphthaldehyde.

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