Ciba-geigy Corporation

Syngenta Crop Protection, Inc.

Rudolf Naef

Beat Schmidhalter

Hanspeter Preiswerk

Thomas Pitterna

Laurenz Gsell

Anthony Cornelius O'Sullivan

Claude Eckhardt

Marcel Senn

David John Wadsworth

The invention relates to a process for the preparation of 2-chloro-5-chloromethyl-thiazole, which is employed as intermediate in the preparation of compounds having a pesticidal action, which process comprises reacting a compound of formula (II), in free form or in salt form, (III), (IV), (V) or (VI) with a chlorinating agent, where R and Mare as defined in claim; to the compounds of the formulae (III) and (IV), which are used in this process as intermediates; and to the use of, and a process for the preparation of, the compounds of formulae (III) and (IV).

Process for the preparation of 2-chloro-5-chloromethyl-thiazole

The compounds of the formula I ##STR1## in which Y and Y.sub.1 are each, independently of one another, O, S, NH or N-alkyl, N-cycloalkyl, N-phenyl or N-benzyl, or Y and Y.sub.1 are together N-alkylene-N, R and R.sub.1 are each, independently of one another, H, alkyl, cycloalkyl, aralkyl or aryl, R.sub.2 and R.sub.3 are each, independently of one another, H, or R.sub.2 forms, together with R.sub.6 and the N and C atoms linking them, a 5- or 6-membered ring and R.sub.3 is H, or R.sub.3 forms, together with R.sub.7 and the N and C atoms linking them, a 5- or 6-membered ring and R.sub.2 is H, R.sub.4 and R.sub.5 are each, independently of one another, H, R.sub.4 forms, together with R.sub.8 and the N and C atoms linking them, a 5- or 6-membered ring and R.sub.5 is H, or R.sub.5 forms, together with R.sub.9 and the N and C atoms linking them, a 5- or 6-membered ring and R.sub.4 is H, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 are each, independently of one another, H, alkyl, cycloalkyl, aralkyl or aryl, or R.sub.6 and R.sub.8 and/or R.sub.7 and R.sub.9 form, together with the N atom linking them, a piperidine radical, a morpholine radical or an unsubstituted piperazine radical or a piperazine radical substituted on the N atom by C.sub.1 -C.sub.4 alkyl, hydroxyl-C.sub.1 -C.sub.4 alkyl or amino-C.sub.1 -C.sub.4 alkyl, Z is H or aryl and An.sup..crclbar. is an anion of a monobasic acid, the alkyl or cycloalkyl being unsubstituted or substituted by halogen, hydroxyl, C.sub.1 -C.sub.4 alkoxy, cyano or phenyl, and the aryl or aralkyl being unsubstituted or substituted by halogen, hydroxyl, NH-alkyl, N(alkyl).sub.2, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.4 alkoxy, carboxyl, alkoxycarbonyl, carbonamido, mono- or dialkylcarbonamido, nitro or CN, are suitable as light-absorbing substances in optical recording media.

Nir dyes, methods of preparing them and their use

The compounds of the formula I ##STR1## in which Y and Y.sub.1 are each, independently of one another, O, S, NH or N-alkyl, N-cycloalkyl,

NIR dyes, methods of preparing them and their use

The invention relates to novel azo dyes of the formula ##STR1## wherein R.sup.1 is an alkyl radical containing 1 to 12 carbon atoms, which is unsubstituted or substituted by hydroxy, alkoxy, cyano or phenyl, or is an aryl radical selected from the group consisting of phenyl, 1-naphthyl, 2-naphthyl, 2-pyridyl, 4-pyridyl, 2-pyrimidinyl and 2-thienyl, these radicals being unsubstituted or substituted by halogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.4 alkoxy, nitro, cyano, --NHR.sup.3, --NH--C.sub.2 -C.sub.6 alkanoyl,--NH--benzoyl, phenoxy, COOR.sup.3, --CONHR.sup.3, phenyl, sulfo or C.sub.1 -C.sub.4 alkylsulfone,

Azo dyes containing a 4-aminopyrazolisothiazole diazo compound

Dyes of the formula ##STR1## where R and R.sub.1 are independently of the other hydrogen, halogen, nitro, alkyl or alkoxy and KK is the radical of a coupling component, which are particularly suitable for dyeing polyester fibers if no water-solubilizing group is present, and which are particularly suitable for dyeing and printing textile materials made of polyamide fibers when at least one sulfo group is present in the dye.

Azo dyes containing a 3-aminobenzothienoisothiazole diazo component

Compounds of the formula ##STR1## in which X, Y, A and M are as defined in claim 1, a process for their preparation and their use as shading dyes in washing agents.

Anionic cyclodiylide compounds, their preparation and use in washing

Disclosed are novel dyes of the formula ##STR1## wherein R is cyano, alkoxycarbonyl containing 1 to 6 carbon atoms in the alkoxy moiety, alkylcarbonyl containing 1 to 6 carbon atoms in the alkyl moiety, carbamoyl or carbamoyl which is N-monosubstituted or N,N-disubstituted by C.sub.1 -C.sub.6 alkyl or nitro,

Growing community of inventors

Lupsingen, Switzerland

Rudolf Naef