THIONOPHOSPHORAMIDE DERIVATIVE, ITS PRODUCTION AND PLANT BLIGHT CONTROLLING AGENT CONTAINING THE SAME AS ACTIVE CONSTITUENT

• Main Authors: SASAKI MITSURU, KOUSAKA HIDEO, ISHIKURI YUKIO
• Format: Patent
• Language: English
• Published: 21.12.1984
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMISTRY; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; METALLURGY; ORGANIC CHEMISTRY; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TRAPPING

NEW MATERIAL:A compound of formula I [R1 is H, (halo)lower alkyl, lower alkylthio lower alkyl, thiacycloalkyl, cyano lower alkyl, etc.; R2 is lower alkyl; R3 is 4,5-methylenedioxy-2-nitrophenyl, 3,5-dimethoxyphenyl, etc.]. EXAMPLE:O-Ethyl O-4,5-methylenedioxy-2-nitrophenyl N-cyanoethyl thionophosphoroamide. USE:A plant blight controlling agent for algal fungi such as Pseudopernospora cubensis, etc. PREPARATION:A thionophosphoramide chloride of formula II, e.g. O-methyl N- 1-(cyanomethyl)ethyl thionophosphoramide chloride, is condensed with a phenol of the formula R3OH, e.g. 4,5-methylenedioxy-2-nitrophenol.