hidrazona de ácido acrílico 2-acilada ou 2-iminoalquilada

a presente invenção se refere hidrazona de ácido acrílico 2-acilada ou 2-iminoalquilada, hidrazona de ácido 2-acilacrilíco, e sais apresentando as respectivas fórmulas (vii), (viia) e (viib) a seguir, nas quais os radicais são como definidos ao longo do relatório descritivo: (vii), (viia), e (viib). Preparation of 1-alkyl-3-haloalkyl-pyrazol-4-carboxylic acid derivative (I), comprises (a) reacting a 2-acylated or 2-iminoalkylated acrylic acid derivative (II) with a N-alkyl hydrazone compound (III) to obtain an acrylic acid hydrazone compound (VI); (b) acylating (VI) with an acyl halide compound (X); (c) iminoalkylating (VI) with an alpha ,alpha -dihalo amine compound (XI); and (d) cyclizing the obtained intermediate products. Preparation of 1-alkyl-3-haloalkyl-pyrazol-4-carboxylic acid derivative of formula (I), comprises (a) reacting a 2-acylated or 2-iminoalkylated acrylic acid derivative of formula (II) with a N-alkyl hydrazone compound of formula ((R 8>)(R 9>)-C=N-N-R 1>) (III) to obtain an acrylic acid hydrazone compound of formula (VI); (b) acylating (VI) with an acyl halide compound of formula (R 2>-C(=O)-X) (X); (c) iminoalkylating (VI) with an alpha ,alpha -dihalo amine compound of formula ((R 2>)(X) 2-C-N(R 1> 0>)(R 1> 1>)) (XI); and (d) cyclizing the obtained intermediate products. R 1> : 1-12C-alkyl, 3-8C-cycloalkyl, 2-12C-alkenyl, 2-12C-alkynyl, 6-8c-aryl, 7-19C-arylalkyl or 7-19C-alkylaryl (all optionally substituted by one or more R1a, X, OR1a, SR1a, N(R1a) 2, Si(R1a) 3, COOR1a, (C=O)R1a, CN or CONR1a); R1a : H or 1-12C-alkyl; R 2> : 1-4C-alkyl (optionally substituted by 1-3 halo atoms of F, Cl or Br, or CF 3); Y 1> : (C=O)OR 3>, CN or (C=O)NR 4>R 5>; either R 3>-R 5> : 1-12C-alkyl, 3-8C-cycloalkyl, 2-12C-alkenyl, 2-12C-alkynyl, 6-8C-aryl, 7-19C-arylalkyl or 7-19C-alkylaryl (all optionally substituted by one or more R1a, X, OR1a, SR1a, N(R1a) 2, Si(R1a) 3, COOR1a, (C=O)R1a, CN or CON(R1a) 2); or R 4>R 5>N : a 5-6-membered ring optionally containing O, S or SO 2group and optionally substituted by one or more R1a, X, OR1a, SR1a, N(R1a) 2, Si(R1a) 3, COOR1a, (C=O)R1a, CN or CON(R1a) 2; Z : O, N +>R 1> 0>R 1> 1>(both preferred) or S; either R 1> 0>, R 1> 1> : 1-12C-alkyl, 3-8C-cycloalkyl, 2-12C-alkenyl, 2-12C-alkynyl, 6-8C-aryl, 7-19C-arylalkyl- or 7-19C-alkylaryl (all optionally substituted by one or more R1a, X, OR1a, SR1a, N(R1a) 2, Si(R1a) 3, COOR1a, (C=O)R1a, CN or CON(R1a) 2); or R 1> 0>R 1> 1>N : 5-6-membered ring optionally containing 1