Yoo, BR Suk, MY Han, JS Yu, YM Hong, SG Jung, IN 2024-01-21T17:32:05Z 2024-01-21T17:32:05Z 2021-09-05 1998-02 0031-613X https://pubs.kist.re.kr/handle/201004/143268 A series of 1-aryl-1-(1H-1,2,4-triazol-1-yl)alkyl-1-silacyclopentanes has been synthesized by four-step reactions starting from 1-chloroalkyltrichlorosilane and tested for fungicidal activities in vitro for ten fungi and in vivo for four fungi occurring in rice, cucumber, tomato etc. Biological activities of the title compounds are strongly dependent upon the F-substituent on the phenyl group in the following order: F > Cl > Ph > Oft > H. Especially, 1-p-fluorophenyl-1-[1-(1H-1,2,4-triazol-1-yl)alkyl]-1-silacyclopentanes (alkyl = methyl or ethyl) showed significant fungicidal activity with a broad spectrum comparable to flusilazole in in-vivo assay. (C) 1998 SCI. English JOHN WILEY & SONS LTD Synthesis and biological evaluation of [1-(1H-1,2,4-triazol-1-yl)alkyl]-1-silacyclopentanes Article 10.1002/(SICI)1096-9063(199802)52:2<138::AID-PS678>3.0.CO;2-G 1 PESTICIDE SCIENCE, v.52, no.2, pp.138 - 144 PESTICIDE SCIENCE 52 2 138 144 scie scopus 000072112100008 2-s2.0-0031936458 Agronomy Entomology Agriculture Entomology Article fungicide triazole silicon compound silacyclopentane