Abstract: The present invention relates to a process for the preparation of compounds of formula I wherein R1 and R2 are each independently of the other hydrogen or C1-C5alkyl and R3 is CF3 or CF2H, by a) reaction of a compound of formula II wherein R1 and R2 are as defined for formula I, with at least one reducing agent to form a compound of formula III wherein R1 and R2 are as defined for formula I, and b) reaction of that compound with at least one reducing agent to form a compound of formula IV wherein R1 and R2 are as defined for formula I, and (c) reaction of that compound with a compound of formula V wherein Q is chlorine, fluorine, bromine, iodine, hydroxy or C1-C6alkoxy and R3 is as defined for formula I, to form the compound of formula I; and to novel intermediates for use in that process.

Abstract: The present invention relates to a process for the preparation of compounds of formula I wherein R1 and R2 are each independently of the other hydrogen or C1-C5alkyl and R3 is CF3 or CF2H, by a) reaction of a compound of formula II wherein R1 and R2 are as defined for formula I, with at least one reducing agent to form a compound of formula III wherein R1 and R2 are as defined for formula I, and b) reaction of that compound with at least one reducing agent to form a compound of formula IV wherein R1 and R2 are as defined for formula I, and (c) reaction of that compound with a compound of formula V wherein Q is chlorine, fluorine, bromine, iodine, hydroxy or C1-C6alkoxy and R3 is as defined for formula I, to form the compound of formula I; and to novel intermediates for use in that process.

Abstract: The present invention relates to a process for the preparation of compounds of formula I wherein R1 and R2 are each independently of the other hydrogen or C1-C5alkyl and R3 is CF3 or CF2H, by a) reaction of a compound of formula II wherein R1 and R2 are as defined for formula I, with at least one reducing agent to form a compound of formula III wherein R1 and R2 are as defined for formula I, and b) reaction of that compound with at least one reducing agent to form a compound of formula IV wherein R1 and R2 are as defined for formula I, and (c) reaction of that compound with a compound of formula V wherein Q is chlorine, fluorine, bromine, iodine, hydroxy or C1-C6alkoxy and R3 is as defined for formula I, to form the compound of formula I; and to novel intermediates for use in that process.

Abstract: The present invention relates to a process for the preparation of compounds of formula I wherein R1 and R2 are each independently of the other hydrogen or C1-C5alkyl and R3 is CF3 or CF2H, by a) reaction of a compound of formula II wherein R1 and R2 are as defined for formula I, with at least one reducing agent to form a compound of formula wherein R1 and R2 are as defined for formula I, and b) reaction of that compound with at least one reducing agent to form a compound of formula IV wherein R1 and R2 are as defined for formula I, and (c) reaction of that compound with a compound of formula V wherein Q is chlorine, fluorine, bromine, iodine, hydroxy or C1-C6alkoxy and R3 is as defined for formula I, to form the compound of formula I; and to novel intermediates for use in that process.

Abstract: A process for the preparation of a compound of formula (I), the process comprising: (i) the reaction of a compound of formula (III), with a compound of formula (IV) to give a compound of formula (II), and (ii) the reaction of the compound of formula (II) with a leaving group, to give the compound of formula (I).

Abstract: The present invention relates to a process for the preparation of compounds of formula (I) wherein R1 and R2 are each independently of the other hydrogen or C1-C5alkyl and R3 is CF3 or CF2H, by a) reaction of a compound of formula (II) wherein R1 and R2 are as defined for formula (I), with at least one reducing agent to form a compound of formula (III) wherein R1 and R2 are as defined for formula (I), and b) reaction of that compound with at least one reducing agent to form a compound of formula (IV) wherein R1 and R2 are as defined for formula (I), and (c) reaction of that compound with a compound of formula (V) wherein Q is chlorine, fluorine, bromine, iodine, hydroxy or C1-C6alkoxy and R3 is as defined for formula (I), to form the compound of formula (I); and to novel intermediates for use in that process.

Abstract: The present invention relates to a process for the preparation of compounds of formula (I) wherein R1 and R2 are each independently of the other hydrogen or C1-C5alkyl and R3 is CF3 or CF2H, by a) reaction of a compound of formula (II) wherein R1 and R2 are as defined for formula (I), with at least one reducing agent to form a compound of formula (III) wherein R1 and R2 are as defined for formula (I), and b) reaction of that compound with at least one reducing agent to form a compound of formula (IV) wherein R1 and R2 are as defined for formula (I), and (c) reaction of that compound with a compound of formula (V) wherein Q is chlorine, fluorine, bromine, iodine, hydroxy or C1-C6alkoxy and R3 is as defined for formula (I), to form the compound of formula (I); and to novel intermediates for use in that process.

Abstract: A process for the preparation of a compound of formula (I) wherein: R is an alkynyl group; R1 is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkyl-alkyl, phenyl and phenylalkyl, it being possible in turn for all of the receding groups to carry one or more identical or different halogen atoms; alkoxy; alkenyloxy; alkynyloxy; alkoxyalkyl; haloalkoxy; alkylthio; haloalkylthio; alkysulfonyl; formyl; alkanoyl; hydroxy; halogen; cyano; nitro; amino; alkylamino; dialkylamino; carboxyl; alkoxycarbonyl; alkenyloxycarbonyl; or alkynyloxycarbonyl; and n is an integer from 0 to 3, said process comprising: (i) the reaction of a compound of formula (III) wherein R, R1 and n are as hereinbefore defined; m and m? are independently 0 or 1; when m and m? are both 0, A is an alkyl, alkenyl or alkynyl group (suitably having up to eight carbon atoms), optionally substituted by one or more groups independently selected from halogen, hydroxy, alkoxy, C1-4 dialkylamino or cyano; when one of m and m? is 0 and the other is 1, A is an al

Abstract: A process for the preparation of thiophenols of formula wherein n is an integer from 1 to 5 and R is hydrogen, alkyl hydroxyalkyl, alkylamino, dialkylamino, alkenyl, alkynyl, alkoxy, alkylthio, phenyl, naphthyl, phenoxy, phenylthio, halogen, hydroxy, mercapto, carboxyl, sulfo or heterocyclyl, by reacting phenyldiazonium salts of formula wherein n and R are as defined and X is halogen or hydrogen sulfate, with sulfur at elevated temperature in the presence of an aqueous base and isolating the compounds of formula I.

Abstract: A process for the preparation of a compound of the formula in which Q is CH or N; Y is NO2 or CN; Z is CHR3, O, NR3 or S; R1 and R2 are, for example, together an alkylene bridge which optionally contains an O; R3 is H or unsubstituted or R4-substituted C1-C12alkyl, R4 is unsubstituted or substituted aryl or heteroaryl; wherein said compound has pesticidal activity.

Abstract: Method of producing compounds of formula wherein R1 is hydrogen or C1-C4-alkyl; R2 is hydrogen, C1-C8-alkyl, C3-C6-cycloalkyl, or a radical —N(R3)R4; or R2 and R6 together are —CH2—CH2—S—; R3 and R4 are hydrogen, C1-C4-alkyl, C3-C6-cycloalkyl or a radical —CH2B; R6 is hydrogen, C1-C8-alkyl, aryl or benzyl; or R3 and R6 together are —CH2—CH2—, —CH2—CH2—CH2—, —CH2—O—CH2—, —CH2—S—CH2— or —CH2—N(R5)—CH2—; X is CH—CN; CH—NO2 or N—NO2; A is an optionally substituted, aromatic or non-aromatic, monocyclic or bicyclic heterocyclic radical; and B is optionally substituted phenyl, 3-pyridyl or thiazolyl; characterised in that a compound of formula wherein R2, R6 and X have the same significance as given above in formula (I), is reacted in the presence of a phase transfer catalyst and a base with a compound of f

Abstract: A process for the preparation of a compound of the formula (I) in which Q, Y, Z, R1, R2 are as defined in claim 1; in which a) a compound of the formula (II), in which X is a leaving group, is reacted with a halogenating agent to give a compound of the formula (III), in which W is a halogen atom; and b) the resulting compound of the formula (III) is reacted with a compound of the formula (IV), in which R1, R2, Y, Z and Q are as defined in claim 1; wherein the preparation of the compound of the formula (III) according to process stage a) involves a purification step in which the reaction mass which has formed is treated with water in the acidic pH range; a process for the preparation of a compound of the formula (III) according to the abovementioned process a), and the use of the compounds of the formulae (II), (III) and (IV) in a process as detailed above are described.

Abstract: A process for the preparation of thiophenols of formula (I) wherein n is an integer from 1 to 5 and R is hydrogen, alkyl, hydroxyalkyl, alkylamino, dialkylamino, alkenyl, alkynyl, alkoxy, alkylthio, phenyl, naphthyl, phenoxy, phenylthio, halogen, hydroxy, mercapto, carboxyl, sulfo or heterocyclyl, by reacting phenyldiazonium salts of formula (II) wherein n and R are as defined and X is halogen or hydrogen sulfate, with sulfur at elevated temperature in the presence of an aqueous base and isolating the compounds of formula (I).

Abstract: The invention relates to a process for the preparation of a compound of the formula wherein Q, Y, Z, R1, R2, R3, R4 and R5 are as defined in the specification, which comprises a) reacting a compound of the formula  with a halogenating agent to form a compound of the formula or b) converting a compound of formula (II) by means of a halogenating agent into a compound of the formula optionally c) converting the compound of formula (IV) into a compound of formula (III); d) converting a compound of formula (III) by means of a compound of the formula into a compound of the formula or e) converting a compound (IV) by means of a compound (V) into a compound (VI); and f) converting a compound (VI) by means of a chlorinating agent into a compound (I); a compound (IV); to a process for the preparation of a compound (III) and to a process for the preparation of a compound (IV).

Abstract: A process for the preparation of aniline compounds of formula: wherein n and R are as defined in claim 1, by reacting nitro compounds of formula: wherein n and R are as defined, with hydrazine at elevated temperature in the presence of an aqueous base. The compounds of formula I are suitable as intermediates in the preparation of herbicides of the isobenzofuranone type.

Abstract: A process for the preparation of aniline compounds of formula 1

Abstract: Method of producing compounds of formula 1

Abstract: The invention relates to a process for the preparation of a compound of the formula 1

Abstract: The Invention relates to a process for the preparation of a compound of the formula wherein Q, Y, Z, R1, R2, R3, R4 and R5 are as defined in the specification, which comprises a) reacting a compound of the formula  with a halogenating agent to form a compound of the formula b) converting a compound of formula (II) by means of a halogenating agent into a compound of the formula  optionally c) converting the compound of formula (IV) into a compound of formula (III); d) converting a compound of formula (III) by means of a compound of the formula e) converting a compound (IV) by means of a compound (V) into a compound (VI); and f) converting a compound (VI) by means of a chlorinating agent into a compound (I); a compound (IV); to a process for the preparation of a compound (III) and to a process for the preparation of a compound (IV).

Abstract: (R)(+)-2-[4-(5-chloro 3-fluoropyridin-2-yloxy)-phenoxy]-propionic acid propinyl ester is produced by converting a compound of formula II in an inert organic solvent, without isolation of the intermediate products, with M2CO3, in which M is sodium or potassium, into the compound of formula III reacting this with the compound of formula IV to form the compound of formula V and converting this with a compound of formula VI wherein Z signifies phenylsulphonyl, tosyl, methylsulphonyl, nosyl, bromophenyl, Cl-, Br- or CICO-, into the compound of formula I.