the present invention relates to processes for the preparation of purified solanesol , solanesyl bromide & amp ; solanesyl acetone . solanesyl acetone has the chemical name — all — trans 6 , 10 , 14 , 18 , 22 , 26 , 30 , 34 , 38 - nonamethyl - 5 , 9 , 13 , 17 , 21 , 25 , 29 , 33 , 37 - triacontanonaen - 2 - one , of formula 1 and is used for synthesis of coenzyme q 10 .