1-Bromo-3,5-dimethyladamantane;CAS 941-37-7

Methods of Manufacturing
A) 59.9 g (0.345 mol) of bromine, Anhydrous aluminum trichloride 10 g (0.075 mol)1, 2-dichloroethane (37.8 g) was added to the reactor to stir well;B) heating the reaction solution A to 15 ° C;C) 50 g (0.3 mol) of 1, 3-dimethyladamantane was added to the mixture obtained in the step (b) to obtain a reaction mixtureIn the liquid B, the reaction process with 5percent sodium hydroxide solution absorption;D) Add 400 g of saturated sodium bisulfite solution to the reaction solution B until the red color in the reaction solution completely disappeared, The organic phase C and the water phase D;E) The organic phase C was washed with 400 g of water and the washed organic phase C was dried with 20 g of anhydrous sodium sulfate;F) the organic phase C obtained in step (e) is distilled off to obtain the crude product E;G) crude product E was distilled under reduced pressure to give 1-bromo-3, 5-dimethyl adamantane, yield 92percent, gas chromatography purity ≥ 99percent.General procedure: The reactions were carried out in glass ampoules (20 mL) or in a pressure microreactor of stainless steel (17 mL). The results of parallel experiments were identical. Into the microreactor (ampoule) in an argon atmosphere was charged 0.3 mmol of Fe(acac)

Uses
Used as memantine intermediate