Abstract
THE structure of sterculic acid, the major component of the kernel oil of Sterculia foetida, has attracted the attention of various workers. Hilditch et al.
1 failed to isolate the acid but concluded from the constants of the oil and the mixed methyl esters and some degradative experiments that it was 12-methyl octadeca-9: 11-dienoic acid. Steger and Van Loon2, working on the mixed fatty acids, deduced that it was probably a hydroxy acid, C18H34O3. However, recently Nunn3 has isolated this acid, C19H34O2, by the method of urea complexes and suggested its structure as ω -(2n-octylcycloprop-1-enyl)-octanoic acid (I). 
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References
Hilditch, Meara and Zaky, J. Soc. Chem. Indust., 60, 198T (1941).
Steger and Van Loon, Fette u. Seifen., 50, 305 (1943).
Nunn, J. Chem. Soc., 313 (1952).
Kohler and Conant, J. Amer. Chem. Soc., 39, 1404 (1917).
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VERMA, J., NATH, B. & AGGARWAL, J. Structure of Sterculic Acid. Nature 175, 84–85 (1955). https://doi.org/10.1038/175084a0
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DOI: https://doi.org/10.1038/175084a0
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