2-(2,3-环氧丙氧基)苯腈

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:

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: 7.3 g of 2-(2,3-epoxypropoxy)benzonitrile are added to a solution of 6.7 g of 5-(4-aminobutoxy)salicylamide in 60 ml of dimethyl sulphoxide and the mixture is stirred for 1 hour in a bath at 90°. The reaction mixture is poured into 300 ml of water and extracted twice with 200 ml of ethyl acetate each time. Working up analogously to Example 23 yields crude 1-[4-(3-carbamoyl-4-hydroxyphenoxy)butylamino]-3-(2-cyanophenoxy)propan-2-ol as a viscous oil, the IR- and 1H-NMR-spectra of which are in concordance with the assumed structure and the Rf-value of which is 0,51 according to thin-layer-chromatography on silicagel using a mixture of ethylacetate-ethanol-conc. ammonia 24:12:4 as the eluent. extracted twice with 200 ml of ethyl acetate each time

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

实验步骤: The solution of 2.24 g of 5-(2-amino-2-methylpropoxy)salicylamide in 30 ml of dioxan is refluxed for 7 hours after the addition of 2.3 g of 2-(2,3-epoxypropoxy)benzonitrile, and then concentrated by evaporation. The residue is divided between 10 ml of 2N hydrochloric acid and 100 ml of ethyl acetate. The acidic aqueous phase is rendered alkaline with concentrated ammonia solution, the base is extracted with ethyl acetate and the solvent is evaporated off, whereupon an oil is obtained from which, by crystallisation from isopropanol and recrystallisation from ethyl acetate, 1-[2-(3-carbamoyl-4-hydroxyphenoxy)-1,1-dimethylethylamino]-3-(2-cyanophenoxy)propan-2-ol having a melting point of 125°-126° is obtained. concentrated by evaporation the base is extracted with ethyl acetate the solvent is evaporated off, whereupon an oil