2-chloro-1-(4-chlorophenyl)ethanol

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Bio-reaction and analysis were carried out in the same way as described in Example 2 except that as substrate was used 3.25 g each of 2-bromo-1-(2'-chlorophenyl) ethanone, 2-chloro-1-(3'-chlorophenyl) ethanone and 2-chloro-1-(4'-chlorophenyl) ethanone instead of 2-bromo-1-(3'-chlorophenyl) ethanone and as the reaction products (-)-2-chloro-1-(2'-chlorophenyl) ethanol, (-)-2-chloro-1-(3'-chlorophenyl) ethanol and (-)-2-chloro-1-(4'-chlorophenyl) ethanol were obtained respectively. The yields and physical properties of the respective reaction products were as shown in Table 4.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Bio-reaction and analysis were carried out in the same way as described in Example 2 except that as substrate was used 3.25 g each of 2-bromo-1-(2'-chlorophenyl) ethanone, 2-chloro-1-(3'-chlorophenyl) ethanone and 2-chloro-1-(4'-chlorophenyl) ethanone instead of 2-bromo-1-(3'-chlorophenyl) ethanone and as the reaction products (-)-2-chloro-1-(2'-chlorophenyl) ethanol, (-)-2-chloro-1-(3'-chlorophenyl) ethanol and (-)-2-chloro-1-(4'-chlorophenyl) ethanol were obtained respectively. The yields and physical properties of the respective reaction products were as shown in Table 4.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a stirred suspension of 3.4 parts of a sodium hydride dispersion 78% in 90 parts of N,N-dimethylformamide are added portionwise, during a 5 minutes-period, 6.9 parts of 1H-1,2,4-triazole. After stirring for 10 minutes at room temperature, there are added 19.1 parts of 4-chloro-α-(chloromethyl)benzenemethanol. The whole is stirred and refluxed for 8 hours. The reaction mixture is cooled and poured onto water. The product is extracted with dichloromethane. The extract is washed with water, dried, filtered and evaporated. The residue is triturated in 2,2'-oxybispropane. The product is filtered off and crystallized from methylbenzene, yielding 17.3 parts (77%) of α-(4-chlorophenyl)-1H-1,2,4-triazole-1-ethanol; mp. 119° C. The whole is stirred refluxed for 8 hours The reaction mixture is cooled poured onto water The product is extracted with dichloromethane The extract is washed with water dried filtered evaporated The residue is triturated in 2,2'-oxybispropane The product is filtered off crystallized from methylbenzene

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a stirred suspension of 3.4 parts of a sodium hydride dispersion 78% in 90 parts of N,N-dimethylformamide are added portionwise, during a 5 minutes-period, 6.9 parts of 1H-1,2,4-triazole. After stirring for 10 minutes at room temperature, there are added 19.1 parts of 4-chloro-α-(chloromethyl)benzenemethanol. The whole is stirred and refluxed for 8 hours. The reaction mixture is cooled and poured onto water. The product is extracted with dichloromethane. The extract is washed with water, dried, filtered and evaporated. The residue is triturated in 2,2'-oxybispropane. The product is filtered off and crystallized from methylbenzene, yielding 17.3 parts (77%) of α-(4-chlorophenyl)-1H-1,2,4-triazole-1-ethanol; mp. 119° C. The whole is stirred refluxed for 8 hours The reaction mixture is cooled poured onto water The product is extracted with dichloromethane The extract is washed with water dried filtered evaporated The residue is triturated in 2,2'-oxybispropane The product is filtered off crystallized from methylbenzene

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Bio-reaction and analysis were carried out in the same way as described in Example 2 except that as substrate was used 3.25 g each of 2-bromo-1-(2'-chlorophenyl) ethanone, 2-chloro-1-(3'-chlorophenyl) ethanone and 2-chloro-1-(4'-chlorophenyl) ethanone instead of 2-bromo-1-(3'-chlorophenyl) ethanone and as the reaction products (-)-2-chloro-1-(2'-chlorophenyl) ethanol, (-)-2-chloro-1-(3'-chlorophenyl) ethanol and (-)-2-chloro-1-(4'-chlorophenyl) ethanol were obtained respectively. The yields and physical properties of the respective reaction products were as shown in Table 4.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2-Chloro-4′-chloroacetophenone (189.6 mg, 1.0 mmol) and a formic acid/triethylamine azeotropic mixture (0.2 ml) were added to a solution of chloro(pentamethylcyclopentadienyl)rhodium (III) (1R,2R)-N-(p-toluenesulfonyl)-1,2-diphenylethylenediamine (0.67 mg, 0.001 mmol, s/c=1000) in ethyl acetate (2.0 ml), followed by stirring at room temperature for 2 hours. After completion of the reaction, 1 M hydrochloric acid (1.2 ml) was added, and the reaction product was extracted with ethyl acetate (2 ml) and dried over magnesium sulfate. Evaporation of the solvent gave a desired compound, (+)-2-chloro-1-(4′-chlorophenyl)ethanol (172.8 mg; yield: 90.2%; optical purity: 91.6% ee). was added the reaction product was extracted with ethyl acetate (2 ml) dried over magnesium sulfate Evaporation of the solvent

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a stirred suspension of 3.4 parts of a sodium hydride dispersion 78% in 90 parts of N,N-dimethylformamide are added portionwise, during a 5 minutes-period, 6.9 parts of 1H-1,2,4-triazole. After stirring for 10 minutes at room temperature, there are added 19.1 parts of 4-chloro-α-(chloromethyl)benzenemethanol. The whole is stirred and refluxed for 8 hours. The reaction mixture is cooled and poured onto water. The product is extracted with dichloromethane. The extract is washed with water, dried, filtered and evaporated. The residue is triturated in 2,2'-oxybispropane. The product is filtered off and crystallized from methylbenzene, yielding 17.3 parts (77%) of α-(4-chlorophenyl)-1H-1,2,4-triazole-1-ethanol; mp. 119° C. The whole is stirred refluxed for 8 hours The reaction mixture is cooled poured onto water The product is extracted with dichloromethane The extract is washed with water dried filtered evaporated The residue is triturated in 2,2'-oxybispropane The product is filtered off crystallized from methylbenzene

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Bio-reaction and analysis were carried out in the same way as described in Example 2 except that as substrate was used 3.25 g each of 2-bromo-1-(2'-chlorophenyl) ethanone, 2-chloro-1-(3'-chlorophenyl) ethanone and 2-chloro-1-(4'-chlorophenyl) ethanone instead of 2-bromo-1-(3'-chlorophenyl) ethanone and as the reaction products (-)-2-chloro-1-(2'-chlorophenyl) ethanol, (-)-2-chloro-1-(3'-chlorophenyl) ethanol and (-)-2-chloro-1-(4'-chlorophenyl) ethanol were obtained respectively. The yields and physical properties of the respective reaction products were as shown in Table 4.