New 8-Oxabicyclo[3.2.1]oct-6-en-3-one Derivatives with Plant Growth Regulatory Activity
摘要:
Several 8-oxabicyclo[3.2.1]oct-6-en-3-one derivatives have been prepared via the [3 + 4] cycloaddition between the oxyallyl carbocation generated from polybromoketones and alkylfurans. The selective effects of these compounds on the radicle growth of a monocotyledon [sorghum (Sorghum bicolor L.)] and a dicotyledon [cucumber (Cucumis sativus L.)] were evaluated. All of the test compounds, at the concentration of 100 mu g mL(-1), stimulated cucumber root growth (5-30%), but they inhibited sorghum root growth (23-56%). None of the compounds had any effect on the percent of germination of the species tested.
Cycloaddition reactions of polysubstituted furans with oxyallyl carbocations
作者:John Mann、Helen J. Holland (née Overton)、Terrence Lewis
DOI:10.1016/s0040-4020(01)81660-4
日期:——
New and improved routes to polysubstituted furans are described, together with a survey of their reactivity in cycloaddition reactions with oxyallyl carbocations, producing polysubstituted 8-oxabicyclo[3.2.1]oct-6-en-3-ones.