Three series of sulfonate derivatives of paeonol were synthesized and screened in vitro for their anti-oomycete activity against P. capsici, respectively. Among all the compounds, 4m displayed the best promising and pronounced anti-oomycete activity against P. capsici than zoxamide, with the EC50 values of 24.51 and 26.87 mg/L, respectively. The results show that acetyl and 4-OCH3 are two necessary groups. The existence of these two sites is closely related to the anti-oomycete activity. Relatively speaking, hydroxyl group is well tolerated, and the results showed that after modification of hydroxyl group with sulfonyl, the anti-oomycete activity was significantly increased.[GRAPHICS].
5. The reaction between sulphonyl chlorides and dimethoxybenzenes in the presence of zinc chloride
作者:Harold Burton、Eric Hoggarth
DOI:10.1039/jr9450000014
日期:——
1-Phenylsulfonylbenzotriazole: A Novel and Convenient Reagent for the Preparation of Benzenesulfonamides and Aryl Benzenesulfonates
作者:Alan R. Katritzky、Guifen Zhang、Jing Wu
DOI:10.1080/00397919408013820
日期:1994.1
Readily available 1-phenylsulfonylbenzotriazole smoothly converts various aliphatic and aromatic amines and phenols into the corresponding benzenesulfonamides and benzenesulfonates in good yields.
Katritzky Alan R., Zhang Guifen, Wu Jing, Synth. Commun, 24 (1994) N 2, S 205-216