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 production of compounds of formula (I) wherein X is fluoro, chloro, bromo or iodo and n is 1, 2, 3 or 4, which process comprises reacting a compound of formula (II) wherein the substituents are as defined for formula (I), with inorganic nitrite in an acidic aqueous medium in the presence of bromide and a copper catalyst and wherein the process is carried out as a one-pot reaction.

Abstract: A process for the preparation of [1,4,5]-oxadiazepine derivatives by reaction of 4,5-diacyl-[1,4,5]-oxadiazepines with a base.

Abstract: The present invention relates to a process for the production of compounds of formula (I) wherein X is fluoro, chloro, bromo or iodo and n is 1, 2, 3 or 4, which process comprises reacting a compound of formula (II) wherein the substituents are as defined for formula (I), with inorganic nitrite in an acidic aqueous medium in the presence of bromide and a copper catalyst and wherein the process is carried out as a one-pot reaction.

Abstract: A process for the preparation of [1,4,5]-oxadiazepine derivatives by reaction of N,N?-diacyl-hydrazines with 2,2?-disubstituted diethyl ethers to form 4,5-diacyl-[1,4,5]-oxadiazepines and reaction of the latter compounds with a hydrohalic acid.

Abstract: A process for the preparation of [1,4,5]-oxadiazepine derivatives by reaction of 4,5-diacyl-[1,4,5]-oxadiazepines with a base.

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 [1,4,5]-oxadiazepine derivatives by reaction of N,N?-diacyl-hydrazines with 2,2?-disubstituted diethyl ethers to form 4,5-diacyl-[1,4,5]-oxadiazepines and reaction of the latter compounds with a hydrohalic acid.

Abstract: Process for preparing 4,6-dimethoxy-2-(methylsulfonyl)-1,3-pyrimidine by reacting 4,6dichloro-2-(methyltio)-1,3-pyrimidine in an inert organic solvent with an alkali metal methoxide, transfer of the resulting 4,6-dimethoxy-2-(methylthio)-1,3-pyrimidine into an aqueous-acidic medium and subsequent oxidation of this compound, of appropriate in the presence of a catalyst, wherein the oxidation is followed by a purification step in which the aqueous-acidic reaction mixture is adjusted with aqueous base to a pH in the range of 5-8 and stirred either in the presence or in the absence of an organic solvent, and the use of this compound for preparing herbicides, for example 7-[(4,6-dimethoxy-pyrimidin-2-yl)thio]-3-methylphthalide.

Abstract: Process for preparing 4,6-dimethoxy-2-(methylsulfonyl)-1,3-pyrimidine by reacting 4,6dichloro-2-(methyltio)-1,3-pyrimidine in an inert organic solvent with an alkali metal methoxide, transfer of the resulting 4,6-dimethoxy-2-(methylthio)-1,3-pyrimidine into an aqueous-acidic medium and subsequent oxidation of this compound, of appropriate in the presence of a catalyst, wherein the oxidation is followed by a purification step in which the aqueous-acidic reaction mixture is adjusted with aqueous base to a pH in the range of 5-8 and stirred either in the presence or in the absence of an organic solvent, and the use of this compound for preparing herbicides, for example 7-[(4,6 dimethoxy-pyrimidin-2-yl)thio]-3-methylphthalide.

Abstract: Compounds of the formula I and disulfides thereof and salts thereof are important intermediate products for the preparation of compounds having a microbicidal and plant-immunizing action, of the formula III In the compounds of the formulae I and III: X is halogen, n is 0,1,2 or 3; Z is CN, CO—A or CS—A, A is hydrogen, halogen, OR1, SR2 and N(R3)R4; R1 to R4 are hydrogen, a substituted or unsubstituted, open-chain, saturated or unsaturated hydrocarbon radical containing not more than 8 carbon atoms, a substituted or unsubstituted cyclic, saturated or unsaturated hydrocarbon radical containing not more than 10 carbon atoms, substituted or unsubstituted benzyl or phenethyl, a substituted or unsubstituted alkanoyl group containing not more than 8 carbon atoms, a substituted or unsubstituted benzoyl group or a substituted or unsubstituted heterocyclyl radical; or R3 and R4, together with the nitrogen atom to which they are bonded, are a 5- or 6-membered, substit

Abstract: Compounds of the formula I and disulfides thereof and salts thereof are important intermediate products for the preparation of compounds having a microbicidal and plant-immunizing action, of the formula III In the compounds of the formulae I and III: X is halogen, n is 0, 1, 2 or 3; Z is CN, CO—A or CS—A, A is hydrogen, halogen, OR1, SR2 and N(R3)R4; R1 to R4 are hydrogen, a substituted or unsubstituted, open-chain, saturated or unsaturated hydrocarbon radical containing not more than 8 carbon atoms, a substituted or unsubstituted cyclic, saturated or unsaturated hydrocarbon radical containing not more than 10 carbon atoms, substituted or unsubstituted benzyl or phenethyl, a substituted or unsubstituted alkanoyl group containing not more than 8 carbon atoms, a substituted or unsubstituted benzoyl group or a substituted or unsubstituted heterocyclyl radical; or R3 and R4, together with the nitrogen atom to which they are bonded, are a 5- or 6-membered, subs

Abstract: Compounds of the formula I 1

Abstract: Compounds of the formula I ##STR1## and disulfides thereof and salts thereof are important intermediate products for the preparation of compounds having a microbicidal and plant-immunizing action, of the formula III ##STR2## In the compounds of the formulae I and III: X is halogen,n is 0, 1, 2 or 3;Z is CN, CO--A or CS--A,A is hydrogen, halogen, OR.sub.1, SR.sub.2 and N(R.sub.3)R.sub.4 ;R.sub.1 to R.sub.4 are hydrogen, a substituted or unsubstituted, open-chain, saturated or unsaturated hydrocarbon radical containing not more than 8 carbon atoms, a substituted or unsubstituted cyclic, saturated or unsaturated hydrocarbon radical containing not more than 10 carbon atoms, substituted or unsubstituted benzyl or phenethyl, a substituted or unsubstituted alkanoyl group containing not more than 8 carbon atoms, a substituted or unsubstituted benzoyl group or a substituted or unsubstituted heterocyclyl radical; or R.sub.3 and R.sub.

Abstract: Compounds of the formula I ##STR1## and disulfides thereof and salts thereof are important intermediate products for the preparation of compounds having a microbicidal and plant-immunizing action, of the formula III ##STR2## In the compounds of the formulae I and III: X is halogen,n is 0, 1, 2 or 3;Z is CN, CO-A or CS-A,A is hydrogen, halogen, OR.sub.1, SR.sub.2 and N(R.sub.3)R.sub.4 ;R.sub.1 to R.sub.4 are hydrogen, a substituted or unsubstituted, open-chain, saturated or unsaturated hydrocarbon radical containing not more than 8 carbon atoms, a substituted or unsubstituted cyclic, saturated or unsaturated hydrocarbon radical containing not more than 10 carbon atoms, substituted or unsubstituted benzyl or phenethyl, a substituted or unsubstituted alkanoyl group containing not more than 8 carbon atoms, a substituted or unsubstituted benzoyl group or a substituted or unsubstituted heterocyclyl radical; or R.sub.3 and R.sub.

Abstract: Compounds of the formula I ##STR1## and disulfides thereof and salts thereof are important intermediate products for the preparation of compounds having a microbicidal and plant-immunizing action, of the formula III ##STR2## In the compounds of the formulae I and III: X is halogen,n is 0,1,2 or 3;Z is CN, CO-A or CS-A,A is hydrogen, halogen, OR.sub.1, SR.sub.2 and N(R.sub.3)R.sub.4 ;R.sub.1 to R .sub.4 are hydrogen, a substituted or unsubstituted, open-chain, saturated or unsaturated hydrocarbon radical containing not more than 8 carbon atoms, a substituted or unsubstituted cyclic, saturated or unsaturated hydrocarbon radical containing not more than 10 carbon atoms, substituted or unsubstituted benzyl or phenethyl, a substituted or unsubstituted alkanoyl group containing not more than 8 carbon atoms, a substituted or unsubstituted benzoyl group or a substituted or unsubstituted heterocyclyl radical; or R.sub.3 and R.sub.

Abstract: A process for the preparation of 3-hydroxyoxetanes of formula I ##STR1## wherein R.sub.9 and R.sub.10 are each independently of the other hydrogen or C.sub.1 -C.sub.4 alkyl, by(1) reaction of a carboxylic acid R--CO.sub.2 H, wherein R is branched alkyl, with an epichlorohydrin of formula II ##STR2## wherein R.sub.9 and R.sub.10 are as defined hereinbefore, to form an ester of formula III ##STR3## wherein R, R.sub.9 and R.sub.10 are as defined hereinbefore, (2) reaction of that ester with an ether of formula IVCHR.sub.1 .dbd.CH--O--R.sub.2 (IV),wherein R.sub.1 is hydrogen or methyl, R.sub.2 is C.sub.1 -C.sub.6 alkyl, or R.sub.1 and R.sub.2 together form a radical of formula --(CH.sub.2).sub.3 --, in the presence of a catalyst, to form an ester of formula V ##STR4## (3) hydrolysis and cyclization of that ester in the presence of a base to form a compound of formula VI ##STR5## wherein R.sub.1, R.sub.2, R.sub.9 and R.sub.