Related Products of 71759-88-1,Some common heterocyclic compound, 71759-88-1, name is 5-Iodo-1-methyl-1H-imidazole, molecular formula is C4H5IN2, 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 64 3-[(1S)-1-(2-Chloro-3-fluoro-6-methoxyphenyl)ethyl]-5-(1-methyl-1H-imidazol-5-yl)-1H-pyrrolo[2,3-b]pyridine A solution of 5-iodo-1-methyl-1H-imidazole (0.0217 g, 0.104 mmol), 3-[(S)-1-(2-chloro-3-fluoro-6-methoxy-phenyl)-ethyl]-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine (0.030 g, 0.070 mmol), potassium carbonate (0.0289 g, 0.209 mmol) and 1,1′-bis(diphenylphosphino)ferrocenepalladium(II) dichloride, dichloromethane (2.84 mg, 0.00348 mmol) in previously degassed 4:1 dioxane:water (1.50 mL) was evacuated and charged with N2 (2*) and heated under microwave conditions [Biotage, 100 C., 30 min, high absorption]. The reaction mixture was partitioned between EtOAc and H2O and separated. The aqueous was back extracted with EtOAc (3*) and the combined organic fractions were dried over Na2SO4, filtered and concentrated in vacuo resulting in a crude brown oil. The crude was purified by chromatography on silica gel [ISCO Combiflash, 12 g cartridge, eluting with 100% DCM-8% MeOH in DCM]. This resulted in the title compound as an off-white solid. 1H NMR (400 MHz, CD3OD): delta=1.82 (d, J=7.3 Hz, 3H), 3.51 (s, 3H), 3.66 (br. s., 3H), 5.12 (q, J=7.1 Hz, 1H), 6.90 (dd, J=4.2, 9.0 Hz, 1H), 6.95 (s, 1H), 7.08 (dd, J=8.8, 8.8 Hz, 1H), 7.41 (d, J=1.0 Hz, 1H), 7.51 (s, 1H), 7.69 (s, 1H), 8.17 (d, J=2.0 Hz, 1H). MS (ES+): m/z 385.11, 387.07 (76/24) [MH+]. HPLC: tR=2.87 min (polar-5 min, ZQ3).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 5-Iodo-1-methyl-1H-imidazole, its application will become more common.
Reference:
Patent; OSI Pharmaceuticals, LLC; US2011/281888; (2011); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem