768-70-7, Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 768-70-7, name is 3-Ethynylanisole, This compound has unique chemical properties. The synthetic route is as follows.
General procedure: To a solution of an alkyne 2 (1.2 equiv) in anhydrous toluene (3 mL) under an argon atmosphere, KOtBu (1.0 equiv) was added, and the mixture was stirred for 10-15 min. Then, an N-protected isatin 1 (1.0 equiv) was added to the reaction mixture, which was stirred for 30 min to 3 h until all the isatin was consumed (confirmed by TLC). The reaction was finally quenched with a few drops of 1 N HCl and the resulting mixture was extracted with CH2Cl2 (2 ¡Á 15 mL). The combined organic phases were washed with a saturated aqueous solution of sodium chloride, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The crude residue was then purified by column chromatography on silica gel (EtOAc-hexane,10:90 to 30:70) to give compounds 3.
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Reference:
Article; Dhara, Kalyan; Kapat, Ajoy; Ghosh, Tridev; Dash, Jyotirmayee; Synthesis; vol. 48; 23; (2016); p. 4226 – 4268;,
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