Synthesis and antifungal activity of novel (1-aryl-2-heterocyclyl)ethylideneaminooxymethyl-substituted dioxolanes
摘要:
A novel series of (1-aryl-2-heterocyclyl)ethylideneaminooxymethyl-substituted dioxolanes IIIa-n were synthesized by condensation of substituted 1,3-dioxolan-4-ylmethyl p-toluenesulfonates 4 with 1-(hydroxyimino)-1-aryl-2-heterocyclylethanes 5. Compounds IIIa-n were found to have effective in vitro antifungal activity when evaluated against the pathogenic fungi Candida albicans, Aspergillus flavus and Fusarium solani with MIC (minimum inhibitory concentration) values of 10 mu g . ml(-1) for IIIa-l and 5 mu g . ml(-1) for IIIm,n.
DOI:
10.1016/0223-5234(96)88277-8
作为产物:
描述:
1-(2,4-二氯l苯基)-2-(1H-1,2,4-噻唑-1-基)-乙酮 、 Hydroxyammonium hydrochloride 、 水 以
乙醇 为溶剂,
反应 5.0h,
以51 g (45% of theory) of 1-(2,4-dichlorophenyl)-1-oximino-2-(1,2,4-triazol-1-yl)-ethane of melting point 165°-170° C. were obtained的产率得到1-(2,4-dichloro-phenyl)-2-[1,2,4]triazol-1-yl-ethanone oxime
Combating fungi with 1-phenyl-1-oximino-2-(1,2,4-triazol-1-yl)-ethanes
申请人:Bayer Aktiengesellschaft
公开号:US04264772A1
公开(公告)日:1981-04-28
A 1-phenyl,1-oximino-2-(1,2,4-triazol-1-yl)-ethane of the formula ##STR1## in which R is halogen, alkyl, alkoxy, alkylthio, alkylsulphonyl, halogenoalkyl, nitro, cyano, optionally substituted phenyl or optionally substituted phenoxy, R' is alkyl, alkenyl, alkynyl, optionally substituted benzyl or optionally substituted styryl, and n is 0, 1, 2 or 3, or a salt thereof with a physiologically acceptable acid or a metal salt complex thereof which possesses fungicidal properties.
Fungicidally active substituted cyclopropyl oxime ethers of the formula ##STR1## in which Z represents a nitrogen atom or the CH group, R represents a optionally substituted phenyl, or represents the grouping ##STR2## in which R.sup.4 represents hydrogen or optionally substituted phenyl, R.sup.1, R.sup.2 and R.sup.3 independently of one another represent hydrogen, methyl or chlorine and n represents an integer from 1 to 6, or addition products thereof with acids or metal salts.
A 1-(2-chlorophenyl)-1-((di)-halogenbenzyloximino)-2-(1,2,4-triazol-1-yl)-et hane of the formula ##STR1## in which X is hydrogen or halogen or a salt thereof with a physiologically acceptable acid or a metal salt complex thereof which possesses fungicidal properties.
A novel series of (1-aryl-2-heterocyclyl)ethylideneaminooxymethyl-substituted dioxolanes IIIa-n were synthesized by condensation of substituted 1,3-dioxolan-4-ylmethyl p-toluenesulfonates 4 with 1-(hydroxyimino)-1-aryl-2-heterocyclylethanes 5. Compounds IIIa-n were found to have effective in vitro antifungal activity when evaluated against the pathogenic fungi Candida albicans, Aspergillus flavus and Fusarium solani with MIC (minimum inhibitory concentration) values of 10 mu g . ml(-1) for IIIa-l and 5 mu g . ml(-1) for IIIm,n.
A fungicidally active substituted phenethyl-triazolyl derivative of the formula ##STR1## in which X.sup.1 and X.sup.2 each independently is halogen or halogenoalkyl, and one of them may also be hydrogen, Y is >C.dbd.N--O--R or >CH--O--R, R is phenoxyethyl which is optionally substituted in the phenyl part, or an addition product thereof with an acid or salt.