作者:Xing-Hai Li、Xin-Ling Yang、Yun Ling、Zhi-Jin Fan、Xiao-Mei Liang、Dao-Quan Wang、Fu-Heng Chen、Zheng-Ming Li
DOI:10.1021/jf0403944
日期:2005.3.1
them possess certain fungicidal activity against Gibberella zeae Petch. In general, compounds containing a 12-membered ring (2A) are more active than those containing a 6- or 7-membered ring (2B, 2C). In the series 2A, the compounds in which R is a disubstituted phenyl or pyrimidyl showed better activity than those in which R is a monosubstituted phenyl or pyrimidyl, and aryl-substituted compounds have
已经从容易获得的环十二烷酮,环庚酮和环己酮以六步三锅反应顺序合成了一系列2-氧代环烷基磺酰脲类(2)。通过IR,1 H NMR和元素分析证实了它们的结构。生物测定表明,其中一些对玉米赤霉菌具有一定的杀真菌活性。通常,含有12元环(2A)的化合物比含有6元或7元环(2B,2C)的化合物更具活性。在2A系列中,其中R是双取代的苯基或嘧啶基的化合物显示出比其中R是单取代的苯基或嘧啶基的化合物更好的活性,并且芳基取代的化合物具有比被嘧啶基取代的化合物更高的活性。进一步的生物测定表明2A,2A15,对玉米(P. zeae Petch)和灰葡萄孢(Botrytis cinerea Pers),球形炭疽菌(Colletotrichum orbiculare Arx),瓜果腐霉(Pythium aphanidermatum Fitzp),尖孢镰刀菌(Fusarium oxysporum Schl)具有良好的杀菌活性。F。sp。血管感染等