1. This application introduces the preparation process of 1-chloro-2 - (1-chloropropane) - 3 - (2-chlorophenyl) propane-2-OL and 2 - (1-chloropropane) - 2 - [(2-chlorophenyl) methyl) oxyethane. 1. Characteristic 1: preparation process of 1-chloro-2 - (1-chloropropane) - 3 - (2-chlorophenyl) propane-2-OL and 2 - (1-chloropropane) - 2 - [(2-chlorophenyl) methyl] oxyethane or mixture thereof, which makes halides reactChlorobenzene of 2-chloro-1-chloro-chloroacetylene propane is characterized by the reaction taking place in a solvent system including methyltetrahydrofuran. Claim 6: a preparation process of qualitative iodine methanol with the following characteristics: (a) reacting 2-chlorobenzene halide with 1-chloro-1-chloroacetylene propane to form a solvent system, including methyltetrahydrofuran(b) preparation of protoconazole using (a) grade product. Claim 7: a process for preparing proton conazole, which is characterized by: (a) reacting 2-chlorobenzene halides with 1-chloro-1-chloroacetylpropane in a solvent system including tetrahydrofluoromethane; (a) reacting the product in stage (a) with 1.2, 2 - (1-chloropropane) - 1 - (2-chlorophenyl) - 3 - (1h-1,2,4-triazol-1-il) propane-2-OL; and (c) reacting (b) grade product with sulfur to produce protyconazol.En la presente solicitud se describe un proceso para preparar 1-cloro-2-(1-clorociclopropil)-3-(2-clorofenil)propan-2-ol y 2-(1-clorociclopropil)-2-[(2-clorofenil)metil]oxirano. Reivindicación 1: Un proceso para la preparación de 1-cloro-2-(1-clorociclopropil)-3-(2-clorofenil)propan-2-ol y 2-(1-clorociclopropil)-2-[(2-clorofenil)metil]oxirano o una mezcla de estos al hacer reaccionar haluro de 2-clorobencilo con 1-cloro-1-cloroacetilciclopropano caracterizado porque la reacción se lleva a cabo en un sistema solvente que comprende metil tetrahidrofurano. Reivindicación 6: Un proceso para preparar protioconazol caracterizado porque comprende: (a) hacer reaccionar haluro de 2-clorobencilo con 1-cloro-1-cloroacetilci