Hydrochloric Acid → HCID 11833714, compound

Participants

Reaction Steps

A reaction vessel was charged with 100 ml of tetrahydrofuran (THF) which had been dried with lithium aluminum hydride, to which 2.83 g (0.1209 mol) of turning magnesium was added. With refluxing, a dried THF solution of 19.6 g (0.106 mol) of 4-bromo-o-xylene was added dropwise over one hour. After the completion of the addition, it was refluxed for about one hour and then cooled to 5° to 10° C. at which a dried THF solution of 25 g (0.106 mol) of chlorodiphenylphosphine oxide was added dropwise over about 3 hours. After the completion of the addition, it was mixed at 50° to 60° C. for 2 hours and allowed to stand for cooling. Then, 100 ml of dilute hydrochloric acid and 100 ml of diethyl ether were added to the resultant solution and mixed for 30 minutes. It was then extracted three time with 200 ml of diethyl ether. The extracted solution was rinsed three times with a 5% sodium hydrogencarbonate solution and dried with anhydrous sodium sulfate. The ether solution was condensed and subjected to column chromatography to obtain 25 g of white solid which had a chart (FIG. 1) of NMR spectrum in CDCl3 to find the following chemical structure; ##STR13##

Provenance & Evidence