Abstract: A process for producing a cyclopropylphenol represented by of formula (10): wherein R1, R2, R3 and R4 each may represent a hydrogen; Z represents a hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl or phenyl; and Y1, Y2 and Y3 each may represent a hydrogen; by reacting a compound of formula (7): wherein X represents a halogen; and V represents a hydrogen or —W—R5, with a metal, metal salt or organometallic compound of formula (8): M2 to obtain a compound of formula (9): and obtaining a compound represented by general of formula (10) by hydrolysis in the case wherein V represents —W—R5, wherein W is CO, SO or SO2 and R5 is alkyl, haloalkyl, cycloalkyl, alkenyl, alkynyl, phenyl, alkoxy or haloalkoxy.

Abstract: A process for preparing 3,6-dichloropyridazine-1-oxide which comprises reacting 3,6-dichloropyridazine with an acid anhydride and hydrogen peroxide of a concentration of 60% or less or a urea hydrogen peroxide addition compound.

Abstract: An N-heteroaryl-4-(haloalkyl)nicotinamide derivative represented by formula (I): [wherein R represents a C1–C6 haloalkyl group; R1 represents a hydrogen atom, a C1–C6alkyl group which may be substituted a C2–C6 alkenyl group or an acyl group; X represents a group represented by formula C—R2, or a nitrogen atom; R2 and R3 each independently represent a hydrogen atom, a halogen atom, a C1–C6 alkyl group which may be substituted, a C3–C7 cycloalkyl group, a C2–C6 alkenyl group, a C3–C7 cycloalkenyl group, a formyl group, a group represented by formula CH?NOR4, a cyano group, a phenyl group which may be substituted, a heterocyclic group which may be substituted, a C1–C6 alkoxy group which may be substituted, a C1–C6 alkylthio group or a phenoxy group]; or a salt thereof, a pesticide containing it as an active component, a method for producing it and intermediates thereof.

Abstract: A compound represented by the formula: [wherein R1 represents a hydrogen atom, a halogen, atom, alkyl group, etc., R2 represents a hydrogen atom, a halogen atom, alkyl group, etc., R3, R4, R5, R6 and R7 each independently represent a hydrogen atom, a halogen atom, a substitutable alkyl group, a substitutable alkenyl group, alkynyl group, a substituteable cycloalkyl group, etc., or R3, R4, R5, R6 and R7 may form a ring which may be substituted, which is formed by the adjacent two of them with carbon atoms to which the respective substituents are bonded, m and n each independently represent 0 or 1.] a salt thereof, an ester derivative thereof and an agricultural chemical containing the same as an effective ingredient, and a herbicidal composition containing the compound and a second herbicidally active compound as effective ingredients.