5381-20-4,With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.5381-20-4,Thianaphthene-3-carboxaldehyde,as a common compound, the synthetic route is as follows.
General procedure: Using a previously described method,23 a catalytic amount of anhydrous ZnI2 (3.2 mg, 20 mumol) and trimethylsilyl cyanide (119 mg, 1.2 mmol) was added to a stirred solution of one of the aldehydes 1a-d (1 mmol) in dry dichloromethane (10 mL) and the resulting mixture was stirred at room temperature until all of the aldehydes was transformed. The solvent was evaporated and the crude product was redissolved in 10 mL of methanol. The formed trimethylsilyl cyanohydrin decomposed when HCl (3 M, 5 mL) was added. The reaction mass was evaporated to the final volume of 5 mL, after which water (5 mL) and dichloromethane (10 mL) were added. After the separation of the two layers, the aqueous layer was extracted with dichloromethane (2 ¡Á 10 mL). The combined organic layers were dried over anhydrous Na2SO4 and the solvent was evaporated in vacuo.
As the paragraph descriping shows that 5381-20-4 is playing an increasingly important role.
Reference£º
Article; Naghi, Mara Ana; Bencze, Laszlo Csaba; Brem, Juergen; Paizs, Csaba; Irimie, Florin Dan; Toa, Monica Ioana; Tetrahedron Asymmetry; vol. 23; 2; (2012); p. 181 – 187;,
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