摘要:
Arthropodicidally and fungicidally active heavy metal salts of nikkomicin are produced by reacting nikkomicin with a water-soluble heavy metal salt in an aqueous medium.
摘要:
Substituted furazans of the formula ##STR1## in which R and R.sup.1 are identical or different and represent optionally substituted aromatic or heteroaromatic radicals,R.sup.2 represents hydrogen, an OH or COOH grouping or an optionally substituted radical from the series comprising alkyl, alkoxy, cycloalkyl, cycloalkenyl, alkoxycarbonyl, alkoxythiocarbonyl, alkylsulphonyl, arylsulphonyl and aralkyl,Y represents oxygen or an S(O).sub.m, --CR.sup.3 R.sup.4, CO or NR.sup.5 grouping,in whichm represents the number 0, 1 or 2 andR.sup.3, R.sup.4 and R.sup.5 are identical or different and represent hydrogen or alkyl,n represents the number 0 or 1 andX represents oxygen or sulphur,and wherein, ifR represents phenyl,R.sup.1 represents phenyl,R.sup.2 represents hydrogen andX represents oxygen or sulphur,thenn represents the number 1,or ifn represents the number 0,R represents 4-bromophenyl,R.sup.1 represents 4-chlorophenyl andR.sup.2 represents hydrogen,thenX represents sulphur,which possess pesticidal activity.
摘要:
Pesticidally active substantially pure nikkomicin fractions obtained from Streptomyces tendae Ettlinger et al Tu 901, the fractions being selected from the group consisting of ##STR1## a mixture of nikkomicin I and J, and a mixture of nikkomicin M and N.
摘要:
Substituted furazans of the formula ##STR1## in which R and R.sup.1 are identical or different and represent optionally substituted aromatic or heteroaromatic radicals,R.sup.2 represents hydrogen, an OH or COOH grouping or an optionally substituted radical from the series comprising alkyl, alkoxy, cycloalkyl, cycloalkenyl, alkoxycarbonyl, alkoxythiocarbonyl, alkylsulphonyl, arylsulphonyl and aralkyl,Y represents oxygen or an S(O).sub.m, --CR.sup.3 R.sup.4, CO or NR.sup.5 grouping,in whichm represents the number 0, 1 or 2 andR.sup.3, R.sup.4 and R.sup.5 are identical or different andrepresent hydrogen or alkyl,n represents the number 0 or 1 andx represents oxygen or sulphur,and wherein, ifR represents phenyl,R.sup.1 represents phenyl,R.sup.2 represents hydrogen andx represents oxygen or sulphur,thenn represents the number 1,or ifn represents the number 0,R represents 4-bromophenyl,R.sup.1 represents 4-chlorophenyl andR.sup.2 represents hydrogen,thenX represents sulphur, which possess pesticidal activity.
摘要:
A method of combating arthropods, comprising applying to the arthropods, or to a habitat infested therewith an arthropodicidally effective amount of an antibiotic which (a) is colorless, very readily soluble in water and in pyridine but insoluble in other customary organic solvents, gives a positive reaction with ninhydrin, sodium metaperiodate/benzidine and potassium permanganate and gives a yellow coloration with iron (III) chloride, (b) has the UV and IR spectra substantially as shown in FIGS. 1 and 2, (c) on chemical degradation yields uracil, an amino-hexuronic acid and an amino-acid containing a pyridine ring, (d) on paper electrophoresis proves to be an amphoteric substance and has an isoelectric point at about pH 6 and (e) consists of the elements carbon, hydrogen, oxygen and nitrogen, or one or more active components of the antibiotic mixture, the active agent being applied alone or in admixture with a diluent or carrier. The antibiotic is known as Nikkomycin which is apparently a mixture of components of the formula ##STR1## in which R.sub.1 is ##STR2## and R.sub.2 is hydrogen, ##STR3##
摘要:
A method of combating arthropods, comprising applying to the arthropods, or to a habitat infested therewith an arthropodicidally effective amount of an antibiotic which (a) is colorless, very readily soluble in water and in pyridine but insoluble in other customary organic solvents, gives a positive reaction with ninhydrin, sodium metaperiodate/benzidine and potassium permanganate and gives a yellow coloration with iron (III) chloride, (b) has the UV and IR spectra substantially as shown in FIGS. 1 and 2, (c) on chemical degradation yields uracil, an amino-hexuronic acid and an amino-acid containing a pyridine ring, (d) on paper electrophoresis proves to be an amphoteric substance and has an isolectric point at about pH 6 and (e) consists of the elements carbon, hydrogen, oxygen and nitrogen, or one or more active components of the antibiotic mixture, the active agent being applied alone or in admixture with a diluent or carrier. The antibiotic is known as Nikkomycin which is apparently a mixture of components of the formula ##STR1## in which R.sub.1 is ##STR2## and R.sub.2 is hydrogen, ##STR3##
摘要:
Insecticidally and acaricidally active novel substituted furazanes of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is hydrogen, halogen, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy, halogenoalkylthio or optionally substituted aryloxy, orR.sup.1 and R.sup.2 together are an optionally substituted alkylene radical which is interrupted by 1 or 2 oxygen atoms,R.sup.3 and R.sup.4 each independently is hydrogen, alkyl, alkoxy, halogenoalkyl or halogenoalkoxy, andX is oxygen or sulphur.
摘要:
Bafilomycins of the formula ##STR1## in which R.sup.1 is hydrogen or CH.sub.3, andR.sup.2 is hydrogen, or the group ##STR2## are produced by culturing certain streptomyces, e.g. Tu 1922, Tu 2437 and Tu 2599. Those wherein at least one of the OH groups is acylated are new. The compounds are pesticidally active.