PROCEDE DE FABRICATION D'OXAZOLES PAR CONDENSATION D'ALDEHYDES AROMATIQUES AVEC DES alpha-CETOXIMES AFIN DE PRODUIRE DES N-OXYDES ET REACTION CONSECUTIVE AVEC DES DERIVES D'ACIDE ACTIVES

The invention is related to a process for preparing compounds of the formula IV by means of conversion of aromatic aldehydes of the formula I using α-ketoximes of the formula II via N-oxides of the formula III to halomethyloxazoles of the formula IV, wherein R1, R2, R3, R4, R5, R6, R7, R8, X1, X2, X...

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Hauptverfasser: HOLLA, WOLFGANG, STUEDEMANN, THOMAS, KULITZSCHER, BERNDT, HOERLEIN, ROLF-LUDWIG, SCHEFFER, ROBERT, J., H, LAUX, WOLFGANG, TAPPERTZHOFEN, CHRISTOPH
Format: Patent
Sprache:fre
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Zusammenfassung:The invention is related to a process for preparing compounds of the formula IV by means of conversion of aromatic aldehydes of the formula I using α-ketoximes of the formula II via N-oxides of the formula III to halomethyloxazoles of the formula IV, wherein R1, R2, R3, R4, R5, R6, R7, R8, X1, X2, X3, o, n1 and n2 are as defined herein.