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Issue 16, 1977
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Polycyclic systems. Part 17. Proton nuclear magnetic resonance spectra of some 11H-lndeno[2,1-a]phenanthrene derivatives; structure of the C26 hydrocarbon (second diels hydrocarbon) from cholesterol

Abstract

The n.m.r. spectra of a number of 11H-indeno[2,1-a]phenanthrenes, including the C26 hydrocarbon (second Diels hydrocarbon) from cholesterol, and their 11-oxo-derivatives have been studied. These data together with some previous observations identify the hydrocarbon as 8-isobutyl-10-methyl-11H-indeno[2,1-a]phenanthrene (21), its formation being rationalised in terms of 1,2-shift of the side chain in ring D, followed by a similar shift of the 13-methyl group and its final inclusion in ring E of the indenophenanthrene (21).

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Article information


J. Chem. Soc., Perkin Trans. 1, 1977, 1814-1818
Article type
Paper

Polycyclic systems. Part 17. Proton nuclear magnetic resonance spectra of some 11H-lndeno[2,1-a]phenanthrene derivatives; structure of the C26 hydrocarbon (second diels hydrocarbon) from cholesterol

D. Nasipuri, P. K. Bhattacharya and D. N. Roy, J. Chem. Soc., Perkin Trans. 1, 1977, 1814
DOI: 10.1039/P19770001814

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