The invention relates to a process for the preparation of one or more intermediate chemical compounds useful in the preparation of non-ionic contrast agents wherein the process is carried out continuously using one or more flow procedures.

The invention relates to a process for the preparation of one or more intermediate chemical compounds useful in the preparation of non-ionic contrast agents wherein the process is carried out continuously using one or more flow procedures.

The invention relates to compounds of the formula Ar(CH.sub.2C.sub.6Br.sub.5).sub.y, wherein Ar indicates a structure comprising one or more six-membered aromatic ring(s) and CH.sub.2C.sub.6Br.sub.5 indicates a pentabromobenzyl group, characterized in that at least one carbon atom of said six-membered aromatic ring(s) is bonded to the benzylic carbon of said CH.sub.2C.sub.6Br.sub.5 group, wherein y, which indicates the number of the CH.sub.2C.sub.6Br.sub.5 groups in said compound, is not less than 1. Processes for preparing the compounds and their use as flame retardants are also disclosed.

The present invention relates to a process for the preparation of a compound of formula I (I), comprising reacting a compound of formula II (II), with a brominating agent in the presence of an acidic catalyst to a compound of formula III (III), and reacting the compound of formula III in tetrahydrofuran or 2-methyl-tetrahydrofuran with potassium tert-butoxide to a compound of formula I. ##STR00001##

The present invention relates to a process for the preparation of a compound of formula I (I), comprising reacting a compound of formula II (II), with a brominating agent in the presence of an acidic catalyst to a compound of formula III (III), and reacting the compound of formula III in tetrahydrofuran or 2-methyl-tetrahydrofuran with potassium tert-butoxide to a compound of formula I. ##STR00001##

The present invention relates to a process for the preparation of a compound of formula I (I), comprising reacting a compound of formula II (II), with a brominating agent in the presence of an acidic catalyst to a compound of formula III (III), and reacting the compound of formula III in tetrahydrofuran or 2-methyl-tetrahydrofuran with potassium tert-butoxide to a compound of formula I. ##STR00001##

The present invention provides a halogenated aniline represented by formula (I) (wherein each of X.sup.1 and X.sup.2 independently represents a chlorine atom, a bromine atom or an iodine atom), a method for producing the halogenated aniline, and other aspects. ##STR00001##

The present invention provides a halogenated aniline represented by formula (I) (wherein each of X.sup.1 and X.sup.2 independently represents a chlorine atom, a bromine atom or an iodine atom), a method for producing the halogenated aniline, and other aspects. ##STR00001##

The present invention provides a halogenated aniline represented by formula (I) (wherein each of X.sup.1 and X.sup.2 independently represents a chlorine atom, a bromine atom or an iodine atom), a method for producing the halogenated aniline, and other aspects. ##STR00001##

This invention relates to novel processes for synthesizing N-(4-cyclohexyl-3-trifluoromethyl-benzyloxy)-acetimidic acid ethyl ester and to the compound of formula I below and other intermediates that are used in such processes.

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