These common heterocyclic compound, 7170-01-6, name is 3-Methyl-1H-1,2,4-triazole, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. SDS of cas: 7170-01-6
In a 25 ml RBF, a mixture of 5-chloro-2-fluorobenzaldehyde (505 mg, 3.09 mmol), 3-methyl-1H-1,2,4-triazole(270 mg, 3.09 mmol), Cs2CO3 (1007 mg, 3.09 mmol) in DMSO(6179 ul) was heated at 45 C for 4 hrs and stirred at rt overnight. The reaction mixture was diluted with EtOAc and washed with water. The combined organic phase was washed with brine, dried over MgSO4, filtered,concentrated and purified by flash chromatography to yield 74A as white solid product (140 mg, 20%).
The synthetic route of 3-Methyl-1H-1,2,4-triazole has been constantly updated, and we look forward to future research findings.
Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; YANG, WU; CORTE, JAMES R; GILLIGAN, PAUL J; PINTO, DONALD J P; EWING, WILLIAM R; DILGER, ANDREW K; WANG, YUFENG; FANG, TIANAN; PABBISETTY, KUMAR B; SMITH II, LEON M; (307 pag.)JP2015/528022; (2015); A;,
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