Scheinkönig J, Hannemann K, Spiteller G. Methylation of the beta-positions of the furan ring in F-acids.
BIOCHIMICA ET BIOPHYSICA ACTA 1995;
1254:73-6. [PMID:
7811750 DOI:
10.1016/0005-2760(94)00169-y]
[Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Major incubation products in feeding experiments with the sodium salt of 7-(5-butyl-furan-2-yl)heptanoic acid (3) on suspension cultures of Saccharum spec. are the unusual F-acids (4a) and (4b). They possess in contrast to natural monomethyl substituted F-acids a methyl substituent in the 4-position of the furan ring. Unexpectedly, the dimethyl substituted F-acids (4c) and (4d) were found only in very small amounts. The detection and structure elucidation of the methylation products (4a)-(4d) was achieved predominantly by GC-MS analysis of the corresponding tetrahydrofuran derivatives (5a)-(5d).
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