Application of 27996-86-7, New Advances in Chemical Research in 2021. The appropriate choice of redox mediator can avoid electrode passivation and overpotential, which strongly inhibit the efficient activation of substrates in electrolysis. 27996-86-7, name is 4-[1,2,4]Triazol-1-yl-benzaldehyde, molecular formula is C9H7N3O, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, below Introduce a new synthetic route.
To a stirred solution of 4-(1 H-1 ,2,4-triazol-1-yl)benzaldehyde (400 mg, 2.28 mmol) in dry MeOH (5 ml_), NaBH4 (93 mg, 2.74 mmol) was added at 0 C and the resulting mixture was stirred at RT for 2 h. After completion of the reaction, ice water was added and the mixture was extracted with EtOAc (2 x 20 ml_). The combined organic layer was washed with brine (2 ml_), dried over Na2S04 and concentrated under vacuum. The resulting crude product was purified by flash chromatography (Eluent: 34% EA in pet ether) to get the title product. Yield: 67% (271 mg, white solid). 1H NMR (400 MHz, DMSO-cfe): d 9.27 (s, 1 H), 9.25 (s, 1 H), 7.78 (d, J = 8.6 Hz, 2H), 7.13 (d, J = 8.6 Hz, 2H), 4.85 (s, 1 H), 3.96 (s, 2H). LCMS: (Method A) 176.1 (M+H), Rt.1.04 min, 99.79% (Max).
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Reference:
Patent; ASCENEURON S. A.; QUATTROPANI, Anna; WISHART, Grant; KULKARNI, Santosh S.; RAKESH, Paul; (338 pag.)WO2020/39027; (2020); A1;,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics