Chiral rare earth-nitroxyl radical single-chain magnet and preparation method thereof
A nitrogen-oxygen radical, rare earth technology, applied in magnetic objects, organic chemical methods, chemical instruments and methods, etc., can solve the problems of molecular magnetic chirality chemical chirality synthesis and separation difficulties, etc.
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[0021] The preparation method of the chiral rare earth-nitroxide radical single-chain magnet comprises the following steps:
[0022] 1) Synthesis of (1R)-(-)-Myrtenal-NIT:
[0023] In a 25mL round-bottomed flask, 20mL of anhydrous methanol was added to dissolve 0.74g (5mmol) of 2,3-dimethyl-2,3-dihydroxyaminobutane, and 0.76mL (0.75g, 5mmol) of (1R) was added after 5 minutes. -(-)-Myrtleenal was stirred at room temperature for two days to obtain a colorless and transparent oily liquid, the solvent was removed under reduced pressure, the oily substance was dissolved in 100 mL of dichloromethane, stirred for 5 minutes in an ice bath, and added 1.1 g of sodium periodate was dissolved in 30 mL of water to prepare a sodium periodate solution, reacted in an ice bath for 25 minutes, and then separated, washed repeatedly, dried, and removed under reduced pressure to remove the solvent, and collected to obtain a blue oil; use petroleum ether The eluent with a volume ratio of ethyl ace...
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