4 g 2 chloro 5 trifluoromethyl pyridine and 10 ml methyl 2 bromopropanoate was refluxed a total of 11 hours to this mixture was added 2 0 g potassium carbonate refluxing was continued for 1 hour and then the hot mixture was poured in water made basic with sodium hydroxide and extracted with diethyl ether the ether was dried mgso 4 and then stripped on a rotary evaporator at 90 u00b0 100 u00b0 to give a residual oil yield 5 5 g of product identical to the material of example 3 2 bromo 5 trifluoromethyl pyridine can be used in place of the 2 chloro 5 trifluoromethyl pyridine in the above procedures with minor modifications in 50 ml of methyl ethyl ketone 2 0 g 0 0078 mole of 4 5 trifluoromethyl 2 pyridinyloxy phenol 3 2 g of methyl 4 bromo 2 pentenoate and 2 0 g of potassium carbonate were refluxed with constant stirring for 32 hours upon cooling to room temperature the suspension was filtered through celite and the insoluble material washed with 75 ml of acetone the filtrate was concentrated under reduced pressure to give an oily residue which was dissolved in 125 ml of ethyl ether and transferred to a separatory funnel after washing with saturated sodium bicarbonate and.