2,4-二氯-5-氟苯胺

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2-Amino-3-(5,7-dichloro-4-fluoro-2H-benzotriazol-2-yl)-2-methylpropionitrile [1.3 g, Rf=0.2 (1:1 EA/heptane)] was prepared using a procedure similar to that described in Example 1, part a and b, except starting from 5,7-dichloro-4-fluoro-1H-benzotriazole. 5,7-Dichloro-4-fluoro-1H-benzotriazole (4 g, 85%) was prepared using a procedure similar to that described in Example 11, part a, except starting from 4,6-dichloro-3-fluoro-2-nitroaniline. 4,6-Dichloro-3-fluoro-2-nitroaniline (6.1 g) was prepared using a procedure similar to that described in Example 39, part a, b and c, except starting from 2,4-dichloro-5-fluoroaniline (10 g).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 36.0 g (0.20 mol) of 2,4-dichloro-5-fluoroaniline are dissolved at room temperature in 180 ml of ethanol and 36.0 g of concentrated sulfuric acid are added with cooling. To this mixture are added dropwise 27.0 ml (0.23 mol) of amyl 1 nitrite. The diazonium salt precipitated out is then removed by suction and washed with a little diethyl ether. with cooling The diazonium salt precipitated out is then removed by suction washed with a little diethyl ether

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 165 ml of tetrahydrofuran are added to 100 g of 2,4-dichloro-5-fluoroaniline at room temperature. To this solution are added 333 ml of tetrafluoroboric acid (50% strength) with cooling. 57.5 g of sodium nitrite in 117 ml of water are added to the reaction mixture cooled to 5°-10° C. in such a way that the internal temperature is 7°-13° C. After addition is completed, the 0° C. solution is filtered. The residue is washed with tetrahydrofuran and ice-cold water. 121 g of product remain. with cooling cooled to 5°-10° C. in such a way that the internal temperature is 7°-13° C After addition the 0° C. solution is filtered The residue is washed with tetrahydrofuran and ice-cold water

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2-Amino-3-(5,7-dichloro-4-fluoro-2H-benzotriazol-2-yl)-2-methylpropionitrile [1.3 g, Rf=0.2 (1:1 EA/heptane)] was prepared using a procedure similar to that described in Example 1, part a and b, except starting from 5,7-dichloro-4-fluoro-1H-benzotriazole. 5,7-Dichloro-4-fluoro-1H-benzotriazole (4 g, 85%) was prepared using a procedure similar to that described in Example 11, part a, except starting from 4,6-dichloro-3-fluoro-2-nitroaniline. 4,6-Dichloro-3-fluoro-2-nitroaniline (6.1 g) was prepared using a procedure similar to that described in Example 39, part a, b and c, except starting from 2,4-dichloro-5-fluoroaniline (10 g).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2-Amino-3-(5,7-dichloro-4-fluoro-2H-benzotriazol-2-yl)-2-methylpropionitrile [1.3 g, Rf=0.2 (1:1 EA/heptane)] was prepared using a procedure similar to that described in Example 1, part a and b, except starting from 5,7-dichloro-4-fluoro-1H-benzotriazole. 5,7-Dichloro-4-fluoro-1H-benzotriazole (4 g, 85%) was prepared using a procedure similar to that described in Example 11, part a, except starting from 4,6-dichloro-3-fluoro-2-nitroaniline. 4,6-Dichloro-3-fluoro-2-nitroaniline (6.1 g) was prepared using a procedure similar to that described in Example 39, part a, b and c, except starting from 2,4-dichloro-5-fluoroaniline (10 g).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2-Amino-3-(5,7-dichloro-4-fluoro-2H-benzotriazol-2-yl)-2-methylpropionitrile [1.3 g, Rf=0.2 (1:1 EA/heptane)] was prepared using a procedure similar to that described in Example 1, part a and b, except starting from 5,7-dichloro-4-fluoro-1H-benzotriazole. 5,7-Dichloro-4-fluoro-1H-benzotriazole (4 g, 85%) was prepared using a procedure similar to that described in Example 11, part a, except starting from 4,6-dichloro-3-fluoro-2-nitroaniline. 4,6-Dichloro-3-fluoro-2-nitroaniline (6.1 g) was prepared using a procedure similar to that described in Example 39, part a, b and c, except starting from 2,4-dichloro-5-fluoroaniline (10 g).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2-Amino-3-(5,7-dichloro-4-fluoro-2H-benzotriazol-2-yl)-2-methylpropionitrile [1.3 g, Rf=0.2 (1:1 EA/heptane)] was prepared using a procedure similar to that described in Example 1, part a and b, except starting from 5,7-dichloro-4-fluoro-1H-benzotriazole. 5,7-Dichloro-4-fluoro-1H-benzotriazole (4 g, 85%) was prepared using a procedure similar to that described in Example 11, part a, except starting from 4,6-dichloro-3-fluoro-2-nitroaniline. 4,6-Dichloro-3-fluoro-2-nitroaniline (6.1 g) was prepared using a procedure similar to that described in Example 39, part a, b and c, except starting from 2,4-dichloro-5-fluoroaniline (10 g).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2-Amino-3-(5,7-dichloro-4-fluoro-2H-benzotriazol-2-yl)-2-methylpropionitrile [1.3 g, Rf=0.2 (1:1 EA/heptane)] was prepared using a procedure similar to that described in Example 1, part a and b, except starting from 5,7-dichloro-4-fluoro-1H-benzotriazole. 5,7-Dichloro-4-fluoro-1H-benzotriazole (4 g, 85%) was prepared using a procedure similar to that described in Example 11, part a, except starting from 4,6-dichloro-3-fluoro-2-nitroaniline. 4,6-Dichloro-3-fluoro-2-nitroaniline (6.1 g) was prepared using a procedure similar to that described in Example 39, part a, b and c, except starting from 2,4-dichloro-5-fluoroaniline (10 g).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 36.0 g (0.20 mol) of 2,4-dichloro-5-fluoroaniline are dissolved at room temperature in 180 ml of ethanol and 36.0 g of concentrated sulfuric acid are added with cooling. To this mixture are added dropwise 27.0 ml (0.23 mol) of amyl 1 nitrite. The diazonium salt precipitated out is then removed by suction and washed with a little diethyl ether. with cooling The diazonium salt precipitated out is then removed by suction washed with a little diethyl ether

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 165 ml of tetrahydrofuran are added to 100 g of 2,4-dichloro-5-fluoroaniline at room temperature. To this solution are added 333 ml of tetrafluoroboric acid (50% strength) with cooling. 57.5 g of sodium nitrite in 117 ml of water are added to the reaction mixture cooled to 5°-10° C. in such a way that the internal temperature is 7°-13° C. After addition is completed, the 0° C. solution is filtered. The residue is washed with tetrahydrofuran and ice-cold water. 121 g of product remain. with cooling cooled to 5°-10° C. in such a way that the internal temperature is 7°-13° C After addition the 0° C. solution is filtered The residue is washed with tetrahydrofuran and ice-cold water

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2-Amino-3-(5,7-dichloro-4-fluoro-2H-benzotriazol-2-yl)-2-methylpropionitrile [1.3 g, Rf=0.2 (1:1 EA/heptane)] was prepared using a procedure similar to that described in Example 1, part a and b, except starting from 5,7-dichloro-4-fluoro-1H-benzotriazole. 5,7-Dichloro-4-fluoro-1H-benzotriazole (4 g, 85%) was prepared using a procedure similar to that described in Example 11, part a, except starting from 4,6-dichloro-3-fluoro-2-nitroaniline. 4,6-Dichloro-3-fluoro-2-nitroaniline (6.1 g) was prepared using a procedure similar to that described in Example 39, part a, b and c, except starting from 2,4-dichloro-5-fluoroaniline (10 g).