So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Wang, Jianxiang researched the compound: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone( cas:86404-63-9 ).Quality Control of 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone.They published the article 《Synthesis of fluconazole》 about this compound( cas:86404-63-9 ) in Huaxi Yaoxue Zazhi. Keywords: fluconazole preparation. We’ll tell you more about this compound (cas:86404-63-9).
The improved synthetic technol. of fluconazole was presented. Fluconazole was produced by 4-step reactions with m-difluorobenzenes as starting material and PEG as phase-transfer catalyst, including acylating with chloroacetyl chloride, substitution reaction with 1,2,4-triazole, the reaction with Me3SOI, and ring opening with 1,2,4-triazole. The product could remove impurity of identical structure after recrystallization, with a yield above 50%. The purity of product was above 98.5%, the quality was stable, and the process is reliable.
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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics