These common heterocyclic compound, 614-97-1, name is 5-Methyl-1H-benzo[d]imidazole, 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. category: imidazoles-derivatives
General procedure: Equivalent amount of the N-protected amino acid or dipeptide (1.45 mmol) (2a: 300 mg, 2b: 320 mg, 2c: 440 mg, 2d: 480 mg, 2e: 250 mg, 2f: 390 mg, 2g: 300 g, 2h: 440 mg, 2i: 250 mg, 2j: 390 mg, 2k: 300 mg, 2l: 320 mg, 2m: 440mg, 2n: 480 mg, 2o: 390 mg, 2p: 520 mg), benzimidazole (or its derivative) (1.45 mmol), (2a, 2b, 2c, 2d, 2e, 2f: 170mg, 2g, 2h, 2i, 2j: 190 mg, 2k, 2l, 2m, 2n, 2o: 240 mg, 2p:170 mg) and DCC (300 mg, 1.45 mmol) were reacted in dried THF (10 mL) under an atmosphere of argon for 3 h at room temperature and formed dicyclohexzylurea was filtered off. The volatiles were removed with reduced pressure. The residue was crystallized from ethanol/diethyl ether (1:2) (Fig. 1).
The synthetic route of 5-Methyl-1H-benzo[d]imidazole has been constantly updated, and we look forward to future research findings.
Reference:
Article; Bu?day, Nesrin; Kuecuekbay, F. Zehra; Apohan, Elif; Kuecuekbay, Hasan; Serinda?, Ayfer; Ye?ilada, Oezfer; Letters in Organic Chemistry; vol. 14; 3; (2017); p. 198 – 206;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem