4-(2-hydroxyethyl)benzonitrile

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Methanesulfonyl chloride (18.6 g, 164 mmol) was added to a stirred solution of 4-(2-hydroxyethyl)benzonitrile (20 g, 136 mmol) and triethylamine (20.6 g, 204 mmol) in DCM (200 mL) at 0° C. The reaction mixture was stirred at rt until the reaction was complete (as indicated by tlc). Water (200 mL) was added and the organic layer was separated, dried and concentrated to give the sub-title compound in a quantitative yield. the organic layer was separated dried concentrated

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 5 g of 2-(4-cyanophenyl)ethanol are introduced into 50 ml of dimethylformamide 2.54 g of imidazole, 5,63 g of tert-butyldimethylsilyl chloride and a spatula tip-ful of dimethylaminopyridine are added. The reaction medium is left for 2 hours at room temperature and is then added to an ice-water mixture. The mixture is extracted with ethyl acetate and the extracts dried over anhydrous sodium sulphate. The product is purified by chromatography on a column of silica gel, using a mixture of cyclohexane and ethyl acetate (10:1 v/v) as eluent, to give 1-cyano-4-(tert-butyldimethylsilyloxyethyl)benzene. The mixture is extracted with ethyl acetate the extracts dried over anhydrous sodium sulphate The product is purified by chromatography on a column of silica gel a mixture of cyclohexane and ethyl acetate (10:1 v/v) as eluent