Abstract: Compounds of the general Formula: in which R1 and R2 are at each occurrence independently hydroxyl, C1-6-alkyl, C1-6-alkoxy, halogen, phenyl or phenoxy; R2 is hydroxyl, C1-6-alkyl, C1-6-alkoxy, halogen, phenyl or phenoxy; R3 is C1-6-alkyl; m is an integer from 0 to 4; and n is an integer from 0 to 5.

Abstract: Compounds of the general Formula: 1

Abstract: A method for producing compounds of general formula (I): wherein R1 and R2, each time they occur and independently of each other, mean hydroxyl, C1-6-alkyl, C1-6-alkoxy, halogen, phenyl or phenoxy; R3 means hydrogen or C1-6-alkyl; m is a whole number from 0 to 4; and n is a whole number from 0 to 5. According to the method, diketene is reacted with an N-phenyl-p-phenylenediamine of general formula (II): wherein R1, R2, R3, m and n have the meanings given above, in the presence of 3 to 40 percent acetic acid and at temperatures of 20 to 100° C. The compounds (I) with R3 is C1-6-alkyl and the enamines can be obtained from these by reaction with ammonia, and their hydration products.

Abstract: A method for producing &agr;-dicarbonyl compounds of formula (I): wherein R1 and R2, independently of each other, mean C1-6-alkyl. In the method, an &agr;,&bgr;-unsaturated ketone of formula (II): wherein R1 and R2 have the meaning above and R3 and R4, independently of each other, mean hydrogen, C1-6-alkyl or di-C1-6-alkylamino, is reacted with ozone in the absence of a catalyst and the resultant ozonide is treated reductively.

Abstract: The invention relates to a method for producing &agr;-dicarbonyl compounds of formula (I), wherein R1 and R2, independently of each other, mean C1-6-alkyl. Said method is characterised in that an &agr;,&bgr;-unsaturated ketone of formula (II), wherein R1 and R2 have the meaning above and R3 and R4, independently of each other, mean hydrogen, C1-6-alkyl or di-C1-6-alkylamino, is reacted with ozone and the resulting ozonide is treated reductively.

Abstract: The invention relates to a method for producing compounds of general formula (I), wherein R1 and R2, each time they occur and independently of each other, mean hydroxy, C1-6-alkyl, C1-6-alkoxy, halogen, phenyl or phenoxy; R3 means hydrogen or C1-6-alkyl; m is a whole number from 0 to 4; and n is a whole number from 0 to 5. According to said method, diketene is reacted with a N-phenyl-p-phenylenediamine of general formula (II), wherein R1, R2, R3, m and n have the meanings given above, in the presence of 3-40% acetic acid and at temperatures of 20 to 100° C., preferably 60 to 70° C. The invention also relates to the compounds (I) with R3=C1,6-alkyl and the enamines that can be obtained from these by reaction with ammonia, and their hydration products.

Abstract: The invention relates to novel acetoacetylated diamines and polyamines and to a method for the production thereof. The acetoacetylated diamines and polyamines are compounds of formula (I), wherein R1 and R2, independent of one another, represent hydrogen or C1-6 alkyl, and A represents C3-8 cycloalkanediyl or a group of formula (II): —(CR3R4)p—[NR—(CR5R6)q]r.