Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 24034-73-9, name is (2E,6E,10E)-3,7,11,15-Tetramethylhexadeca-2,6,10,14-tetraen-1-ol. A new synthetic method of this compound is introduced below., SDS of cas: 24034-73-9
[0287] 2E, 6E, 10E-Geranylgeranyl acetate (2a) (R= Methyl): A dry reaction flask equipped with a stir bar and N2 inlet was charged with Geranylgeranyl alcohol 1 (0.087 g, 0.3 mmol), triethyl amine (0.062 m L, 0.45 mmol) and dichloromethane, DCM (1 mL) and cooled to 0 C. To it was added acetyl chloride (1M solution in DCM, 0.42 mL, 0.042 mmol) drop-wise and the resulting reaction was stirred at room temperature for overnight, ~24h. The reaction was quenched with aqueous IMaHC03 solution, extracted with DCM (3 x 20 mL), the DCM extract was washed with water (20 mL), dried over anhydrous Na2S04 and solvent was evaporated u nder a reduced pressure. The resulting oily residue was purified by a silica gel colum n chromatography using n-hexa nes to 1-2% EtOAC in n-hexanes to afford a colorless liq u id of ester 2a. Yield : 0.059 mg (60%); TLC Rf: 0.58 (10% EtOAc/n-Hexanes); LCMS: MS ( m/z): 333.4 (M+H); Ret. Time: 14.13 minutes.
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Reference:
Patent; COYOTE PHARMACEUTICALS, INC.; SERIZAWA, Hiroaki; ARGADE, Ankush B.; DATWANI, Akash; SPENCER, Natalie; PAN, Yonghua; ERMINI, Florian; WO2013/130654; (2013); A1;,
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