- Resveratrol derivative as well as preparation method and application thereof
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The invention belongs to the technical field of pesticides, and particularly relates to a resveratrol derivative as well as a preparation method and application thereof. The invention provides the resveratrol derivative, the structural formula of the resveratrol derivative is shown as a formula I or a formula II, and R1 and R2 are heterocyclic groups, substituted heterocyclic groups, aryl groups, substituted aryl groups, branched chain alkyl groups or naphthenic groups. The resveratrol derivative provided by the invention has good tobacco mosaic virus inhibitory activity, and has certain bactericidal and insecticidal properties.
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Paragraph 0085-0089
(2021/06/23)
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- Assembled catalyst of palladium and non-cross-linked amphiphilic polymer ligand for the efficient heterogeneous Heck reaction
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The efficient heterogeneous Heck reaction was achieved by a new networked and supramolecular catalyst PdAS-V (1b). Employing of PdAS-V in 5.0×10-5molequiv. efficiently progressed the heterogeneous Heck reaction of a series of aryl iodides with acrylates, styrenes and acrylic acid. PdAS-V was successfully recycled five times without any decrease in its activity, and showed good stability in toluene and water, and hence the Heck reaction was efficiently performed in both reaction media. The use of 8.0×10-7molequiv. of PdAS-V resulted in the coupling product in 92% yield with the turnover number (TON) and the turnover frequency (TOF) of PdAS-V reached up to 1,150,000 and 12,000, respectively. The efficient synthesis of resveratrol was achieved via the PdAS-V-promoted Heck reaction.
- Yamada, Yoichi M. A.,Takeda, Koji,Takahashi, Hideyo,Ikegami, Shiro
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p. 4097 - 4105
(2007/10/03)
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