Electric Literature of 68282-53-1,Some common heterocyclic compound, 68282-53-1, name is 5-Methyl-1H-imidazole-4-carbaldehyde, molecular formula is C5H6N2O, 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.
Example 42 (Z)-1,3-Dihydro4-fluoro-3-[(4-methyl-1H-imidazol-5-yl)methylene]-5-nitro-2H-indol-2-one (OO) STR68 To a solution of 1,3-dihydro4-fluoro-5-nitro-2H-indol-2-one (1 g, 5 mmol) in MeOH (10 mL) (Starting Material 10), was successively added, at r.t., 4-methyl-5-imidazolecarboxaldehyde (612 mg, 5.5 mmol) (Aldrich) and tetrabutyl ammonium hydroxide (11 mL, 1.0 M solution in MeOH)(Aldrich). The mixture was stirred at r.t. for 4 h. The resulting greenish precipitate was collected by suction filtration, washed with ether and air dried to yield (Z)-1,3-dihydro-4-fluoro-3-[(4-methyl-1H-imidazol-5-yl)methylene]-5-nitro-2H-indol-2-one as a green powder. (Yield 1.14 g, 79%).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 5-Methyl-1H-imidazole-4-carbaldehyde, its application will become more common.
Reference:
Patent; Hoffmann-La Roche Inc.; US6153634; (2000); A;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem