异氰酸庚酯

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

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

实验步骤: 376 mg (1.1 mmol) of methyl (Z)-3-(3′-amino-2-butoxybiphenyl-4-yl)-2-methoxyacrylate and 0.3 mL (2.2 mmol) of heptyl isocyanate are heated at 100° C. by microwave in an Emrys Optimizer machine for 20 minutes. The residue obtained is taken up in ether and then filtered by suction. 431 mg (79%) of methyl (Z)-3-[2-butoxy-3′-(3-heptylureido)biphenyl-4-yl]-2-methoxyacrylate are obtained in the form of a white powder. The residue obtained filtered by suction

反应条件: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 172 μL (1 mmol) of heptyl isocyanate are added to 251 mg (0.8 mmol) of ethyl 2-[1-(3′-methylaminobiphenyl-4-yl)meth-(E)-ylidene]pentanoate (prepared according to Example 8a). The reaction mixture is heated at 100° C. in an Emrys Optimizer microwave oven for 20 minutes. The residue is purified by chromatography on a column of silica eluted with a 70/30 heptane/ethyl acetate mixture. 361 mg (100%) of ethyl 2-[1-[3′-(3-heptyl-1-methylureido)biphenyl-4-yl]meth-(E)-ylidene]pentanoate are obtained in the form of a yellowish oil. The residue is purified by chromatography on a column of silica eluted with a 70/30 heptane/ethyl acetate mixture

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

实验步骤: 3.2 mL (20 mmol) of heptyl isocyanate are added to a solution of 2.5 g (13 mmol) of (3-bromophenyl)methylamine (prepared according to Example 24f) in 10 mL of tetrahydrofuran in the presence of 2 mL of triethylamine. The reaction mixture is stirred for 12 hours at room temperature. The reaction is stopped by addition of 2 mL of water and extraction with ethyl acetate. The organic phases are combined and dried over sodium sulfate. The solvents are evaporated off and the residue is then purified by chromatography on a column of silica eluted with a 70/30 heptane/ethyl acetate mixture. 3.4 g (77%) of 1-(3-bromophenyl)-3-heptyl-1-methylurea are obtained in the form of a solid. dried over sodium sulfate The solvents are evaporated off the residue is then purified by chromatography on a column of silica eluted with a 70/30 heptane/ethyl acetate mixture

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

实验步骤: 1.0 g (3.4 mmol) of ethyl (E)-2-methyl-3-(3′-methylaminobiphenyl-4-yl)acrylate is mixed with 2 mL of heptyl isocyanate and the medium is irradiated by microwave for 30 minutes at a temperature of 100° C. in an Emrys Optimizer machine. The residue obtained is purified by chromatography on a column of silica eluted with a 9/1 heptane/ethyl acetate mixture. 1.2 g (88%) of ethyl (E)-3-[3′-(3-heptyl-1-methylureido)biphenyl-4-yl]-2-methylacrylate are obtained. the medium is irradiated by microwave for 30 minutes at a temperature of 100° C. in an Emrys Optimizer machine The residue obtained is purified by chromatography on a column of silica eluted with a 9/1 heptane/ethyl acetate mixture

反应条件: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 172 μL (1 mmol) of heptyl isocyanate are added to 214 mg (0.7 mmol) of ethyl 2-[1-(3′-methylaminobiphenyl-4-yl)meth-(E)-ylidene]butyrate. The reaction mixture is heated at 100° C. in an Emrys Optimizer microwave oven for 20 minutes. The residue is purified by chromatography on a column of silica eluted with a 70/30 heptane/ethyl acetate mixture. 306 mg (98%) of ethyl 2-[1-[3′-(3-heptyl-1-methylureido)biphenyl-4-yl]meth-(E)-ylidene]butyrate are obtained in the form of yellowish crystals. The residue is purified by chromatography on a column of silica eluted with a 70/30 heptane/ethyl acetate mixture