Abstract:
Process for making a compound represented by formula (3), comprising the following steps: a) reacting an azide compound with a compound represented by formula (1) to yield compound (2), compound (2) being a compound represented by formula (2) or its salts, b) methylating compound (2) obtained in step a) using a methylating agent to obtain compound (3), wherein R1 denotes a hydrocarbon rest, and wherein in step a) a solvent system A and in step b) a solvent system B is used, wherein both solvent systems A and B comprise one dipolar aprotic solvent or a mixture of dipolar aprotic solvents as the main component, and wherein steps a) and b) are carried without isolating the compound (2) obtained in step a).
Abstract:
A method for manufacturing an isocyanate compound represented by formula (2) (2) wherein R1 represents a methyl group,an ethyl group,a cyclopropyl group, a chlorine atom, a bromine atom, or a methoxy group; and R2 represents an alkyl group having 1 to 6 carbon atoms, comprising reacting an aniline compound represented by formula(1) (1) wherein R1 and R2 are defined as above with a phosgene compound at a temperature of from 40°C to the boiling point of the inert solvent in at least one kind of inert solvent.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von 2-Aminobiphenylen der Formel (I), worin n für 0, 1, 2 oder 3 steht, R 1 für Wasserstoff, Cyano oder Fluor steht, und jedes R 2 jeweils unabhängig voneinander ausgewählt ist unter Cyano, Fluor, C 1 -C 4 -AIkVl, C 1 -C 4 -Fluoralkyl, C 1 -C 4 -Alkoxy, C 1 -C 4 -Fluoralkoxy, C 1 -C 4 -Alkylthio und C 1 -C 4 -Fluoralkylthio. Die Erfindung betrifft auch ein Verfahren zur Herstellung von Pyrrazolcarboxamiden solcher 2-Aminobiphenyle.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von 2-(Amino-methyliden)-4,4-dihalo-3-oxobuttersäureestern der Formel (I), worin R 1 , R 2 , R 3 für C 1 -C 6 -Alkyl, C 1 -C 6 -Haloalkyl, C 2 -C 6 -Alkenyl, C 3 -C 10 -Cycloalkyl oder Benzyl stehen und/oder R 2 gemeinsam mit R 3 und dem Stickstoffatom, an das die beiden Reste gebunden sind, für einen heterocyclischen Rest stehen, bei dem man einen entsprechenden 3-Aminoacrylsäureester mit einem halogensubstituierten Acetylfluorid in Gegenwart wenigstens eines Alkali- oder Erdalkalimetallfluorids umsetzt; sowie die weitere Umsetzung von halogensubstituierten 2-(Aminomethyliden)-3-oxobuttersäureestern der Formel (I) zu halomethylsubstituierten Pyrazol-4-ylcarbonsäuren und deren Estern.
Abstract:
The present invention relates to a process for manufacturing haloacetamides of formula (I), comprising sub-step (a): reacting halones of formula (II) with oleum; followed by sub-step (b): reacting the reaction mixture obtained in sub-step(a) with an amine of formula (IV) optionally in the presence of a base; wherein the variables are defined according to the description.
Abstract:
The present invention relates to a process for manufacturing fluoroaromatics of formula (I), A-F, comprising step a) diazotization of aminoaromaticsof formula (II) in anhydrous HF with an aqueous solution of a diazotizing agent; followed by step b) thermic decomposition of the diazonium salt of formula (III) resulting from step a); wherein the variables are defined according to the description.
Abstract:
The present invention relates to a process for manufacturing triazinon-benzoxazinones of formula (I), by reacting amino-benzoxazinones of formula (II) with 1,1'-carbonyldiimidazole (CDI) and a (thio)urea compound of formula (III); wherein the variables are defined according to the description.
Abstract:
The present invention relates to a process for manufacturing aryloxyacetamides of formula (I), by reacting haloacetamides of formula (II) with a phenol of formula (III); wherein the variables are defined according to the description, andaryloxyacetamides of formula (I).
Abstract:
The present invention relates to for manufacturing benzoxazinones of formula (I), characterized in that amino compounds of formula (II) are added to an acid; wherein the substituents are defined according to the specification.
Abstract:
The present invention relates to a process for manufacturing 4-propargylated amino- benzoxazinones of formula (I), comprising the following steps: step a) preparing propargyl chloride by reacting propargyl alcohol with thionyl chloride optionally in the presence of a catalyst; and step b) reacting the propargyl chloride prepared in step (a) with a NH-benzoxazinone of formula (II); wherein the variables are defined according to the description.