of inflammatory conditions application_number US 78784385 A description the compound of this invention can be prepared from known polyolefinic materials e g aromatic aldehydes employing known synthetic procedures or from analogous polyolefinic compounds which can be prepared in accordance with methods known by those skilled in the art the preferred method of synthesizing the compounds of the invention is described in the example that follows a solution of 4 2 6 6 trimethyl 1 cyclohexen 1 yl 3 buten 2 yl triphenylphosphonium bromide prepared from 17 2 g of 4 2 6 6 trimethyl 1 cyclohexen 1 yl 3 buten 2 ol and 30 4 g of triphenylphosphonium hydrogen bromide in 150 ml of n n dimethylformamide dmf was stirred under nitrogen in an ice bath and nah 4 25 g 50 oil dispersion was added in portions the mixture was stirred in the cooling bath for an additional hour and a solution of 2 3 6 trimethyl p anisaldehyde 15 8 g 0 089 mol in 50 ml of dmf was added dropwise within 15 min the resulting mixture was stirred at room temperature for 18 hrs and heated to 50 u00b0 60 u00b0 c for 11 2 hrs after cooling the mixture was poored into 3 liters of water and extracted with hexane the hexane extract was washed with 400 ml of a meoh h 2 o mixture 6 4 v v and water 400 ml after drying over na 2 so 4 the solvent was evaporated in vacuo to give 24 1 g of crude product as a brown oil the pure product was obtained as a pale yellow oil from vacuum distillation of the crude product bp 152 u00b0 153 u00b0 c 0 075 mm of hg ms ci 339 m 1 compounds of.