hours under 5 bars at 50 u00b0 c identical results are obtained d if in the same autoclave the reaction is performed on the same quantities of amino alcohols and of palladium catalyst but in the presence of 75g of ethanol as solvent the hydrogenation is carried out in one hour under 50 bars the temperature varies from 55 u00b0 to 65 u00b0 c the results are still identical this is also the case when ethanol is replaced by methanol working as in example 4 a 2 000g of an industrial mixture of fluorinated amino alcohols of formulae c n 1 f 2n 1 cf u2550 ch ch 2 nh ch 2 ch 2 oh 33 mol in which the distribution by weight of the fluorinated chains is as follows ______________________________________ n ______________________________________ 6 55 7 8 27 2 10 10 15 12 3 9 u2267 14 2 9______________________________________ after the catalyst is filtered off and the ethanol evaporated off 1 990g of a semi liquid semi solid pale yellow product completely liquid at 45 u00b0 c are obtained the gc analysis of which gives the following results a 2 liter reactor equipped with stirrer a thermometer and a condenser is charged with 1 200g of the product obtained in example 5 and 309g of styrene oxide the mixture is then heated with stirring to 118 u00b0 c and the heating thereafter stopped the temperature then rises by itself to 125 u00b0 c in the course of 5 minutes the mixture is cooled to 108 u00b0 c in the course of 15 minutes heating is then resumed and the mixture is maintained at 118 u00b0 120 u00b0 c for a further 2 and a quarter hours 4 8g of styrene oxide are then added and the mixture.