Abstract: Gossypol and apogossypol derivatives of general formula (1), preparation thereof and use thereof.

Abstract: A method for preparing aromatic carboxylic acid derivatives by nucleophilic aromatic substitution, involves reacting an aromatic carboxylic acid derivative supporting only one carboxyl function, or one of the salts thereof, the carboxylic acid derivative supporting, orthogonally to the carboxyl function, a leaving group which is a fluorine or chlorine atom or an alkoxy group, chiral or otherwise and, in the latter case, preferably a methoxy group; the carboxylic acid derivative being substituted by at least one electro-attractive group other than the leaving group, preferably by a fluorine atom, with a MNu reagent, wherein M is a metal and Nu an optionally chiral nucleophile, the nucleophilic aromatic substitution reaction being carried out without a catalyst and without a step of protecting/unprotecting the acid function of the initial compound, the method being selective in that the reaction leads to the formation of ketone derivatives in a very minority fashion during the reaction.

Abstract: Method for preparing carboxylic acid derivatives by aromatic nucleophilic substitution, in which a carboxylic acid derivative having a single carboxyl functional group, or one of the salts thereof, the carboxylic acid derivative having, in the ortho position of the carboxyl functional group, a leaving group, which is preferably an atom of fluorine or of chlorine or an alkoxy group, chiral or not, preferably a methoxy group, the carboxylic acid derivative not being substituted by an electro attractive group other than the leaving group if any; is reacted with a reactant MNu, where M is a metal and Nu is a nucleophile, chiral or not, the aromatic nucleophilic substitution reaction being carried out without a catalyst and without a step of protecting/deprotecting the acid functional group of the starting compound.

Abstract: Gossypol and apogossypol derivatives of general formula (1), preparation thereof and use thereof.

Abstract: The present invention relates to new derivatives of the family of 3-arylpyrazoles of formula (I), their methods of preparation, the compositions containing them and their utilization for the protection of plants against fungal diseases.

Abstract: Phenylpyrazoles of the formula: ##STR1## in which: X=H, hal, NO.sub.2, CN, SCN, alkyl (C.sub.1 -C.sub.4), alkenyl (C.sub.2 -C.sub.4), alkynyl (C.sub.2 -C.sub.4), alkoxy (C.sub.1 -C.sub.4), alkylthio (C.sub.1 -C.sub.4), phenyl, phenoxy; mono- or di- alkyl- or phenyl- amino; alkylcarbonyl, carbamoyl, carboxyl, benzoyl; alkyl- sulphinyl or sulphonyl;Y, Z=H, hal, OH, NO.sub.2, NO, CN, SCN, alkyl (C.sub.1 -C.sub.4), alkenyl (C.sub.2 -C.sub.4), alkynyl (C.sub.2 -C.sub.4), alkoxy (C.sub.1 -C.sub.4), alkylthio (C.sub.1 -C.sub.4), phenyl, phenoxy; mono- or di- alkyl- or phenyl- amino; alkylcarbonyl, carbamoyl, carboxyl, benzoyl; alkyl- sulphinyl or sulphonyl, for example; andY, Z may also form a bridge of 1 to 4 atoms, of which at least one can be a hetero atom, optionally substituted. The products are useful as fungicides in agriculture.

Abstract: Phenylpyrazoles of the formula: ##STR1## in which: X.dbd.H, hal, NO.sub.2, CN, SCN, alkyl (C.sub.1 -C.sub.4), alkenyl (C.sub.2 -C.sub.4), alkynyl (C.sub.2 -C.sub.4), alkoxy (C.sub.1 -C.sub.4), alkylthio (C.sub.1 -C.sub.4), phenyl, phenoxy; mono- or di- alkyl- or phenyl- amino; alkylcarbonyl, carbamoyl, carboxyl, benzoyl; alkyl- sulphinyl or sulphonyl;Y, Z.dbd.H, hal, OH, NO.sub.2, NO, CN, SCN, alkyl (C.sub.1 -C.sub.4), alkenyl (C.sub.2 -C.sub.4), alkynyl (C.sub.2 -C.sub.4), alkoxy (C.sub.1 -C.sub.4), alkylthio (C.sub.1 -C.sub.4), phenyl, phenoxy; mono- or di- alkyl- or phenyl- amino; alkylcarbonyl, carbamoyl, carboxyl, benzoyl; alkyl- sulphinyl or sulphonyl, for example; andY, Z may also form a bridge of 1 to 4 atoms, of which at least one can be a hetero atom, optionally substituted. The products are useful as fungicides in agriculture.