Abstract
WE have reported1 that the selenium dehydrogena-tion of cholesterol C27H46O and ergosterol C28H44O gives two different hydrocarbons, C25H24, m.p. 225°, and C26H26, m.p. 214°, respectively, while Diels and Karstens2 claimed the formation of only one product, C25H24, m.p. 220°, from both sterols. Diels now suggests3, without new experimental work, that our hydrocarbons might be impure and insists on their identity. Cook and Hewett4 also think fche diversity of the two hydrocarbons improbable and assign to them the formula C25H22 proposed by Rosenheim and King5.
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References
Acta Helv., 16, 812; 1933.
Annalen, 478, 135; 1930.
Ber., 66, 1124; 1933.
J. Chem. Soc., 1098; 1933.
Chem. and Ind., 52, 301; 1933.
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RUZICKA, L., GOLDBEBG, M., THOMANN, G. et al. Selenium Dehydrogenation of Sitosterol. Nature 132, 643 (1933). https://doi.org/10.1038/132643a0
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DOI: https://doi.org/10.1038/132643a0
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