1998
DOI: 10.1071/c97062
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Synthesis and Plant Growth Regulatory Activity of 6α,7β-Dihydroxyvouacapan-17β-oic Acid Derivatives.

Abstract: Five new derivatives of 6α,7β-dihydroxyvouacapan-17β-oic acid were prepared. The effect of these new furan diterpenes on the radicle growth of Sorghum bicolor L. and Cucumis sativus L. was evaluated. All compounds, at a concentration of 100 ppm, showed an inhibitory effect (40–63%) on the radicle growth of S. bicolor L. and a small stimulatory growth effect (3–15%) on the radicle of C. sativus L. None of the compounds had any effect on the germination rate of both plants.

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Cited by 16 publications
(18 citation statements)
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“…3 The infrared spectrum of compound 5 showed all the expected signals, specially a sharp band at 1296 cm -1 due to the C=S bond stretching. The 13 C NMR spectrum of 5 showed six signals with no correlation in the HMQC contour map assigned to carbons 12 and 13 of the furan ring, the quaternary carbons 4 and 10, the ester carbonyl and the thiocarbonyl.…”
Section: Resultsmentioning
confidence: 99%
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“…3 The infrared spectrum of compound 5 showed all the expected signals, specially a sharp band at 1296 cm -1 due to the C=S bond stretching. The 13 C NMR spectrum of 5 showed six signals with no correlation in the HMQC contour map assigned to carbons 12 and 13 of the furan ring, the quaternary carbons 4 and 10, the ester carbonyl and the thiocarbonyl.…”
Section: Resultsmentioning
confidence: 99%
“…8 The effects of compounds 1 and 4 on the radicle growth of C. sativus L. and S. bicolor L. were previously reported. 3 As compound 5 was obtained in a relatively good yield, being another sulphur derivative of the natural product 1 and presenting a new ring fused to the vouacapane skeleton, we decided to evaluate its influence in plant radicle growth. The same preliminary test conditions previously described 3 were applied to compound 5.…”
Section: Resultsmentioning
confidence: 99%
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