Synthetic Route of 131020-36-5, A common heterocyclic compound, 131020-36-5, name is Methyl 1-methyl-1H-benzo[d]imidazole-5-carboxylate, molecular formula is C10H10N2O2, 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.
Preparation of ( 1 -methyl- l H-benzimidazol- – l methanolThe title compound was synthesized by esterification of l//-benzimidazole-5-carboxylic acid using methanol in presence of cone, sulphuric acid followed by N-methylation using methyl iodide in presence of potassium carbonate and subsequent reduction of the ester group by lithium aluminium hydride; NMR (300 MHz, DMSO- 6) delta 3.84 (s, 3H), 4.59 (s, 2H), 5.23 (br s, l H), 7.26 (d, J = 8.4 Hz, 1H), 7.52-7.58 (m, 2H), 8.23-8.31 (m, 1 H).
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; GLENMARK PHARMACEUTICALS S.A.; LINGAM, Prasada, Rao, V., S.; THOMAS, Abraham; KHAIRATKAR-JOSHI, Neelima; BAJPAI, Malini; GULLAPALLI, Srinivas; DAHALE, Dnyaneshwar, Harishchandra; MINDHE, Ajit, Shankar; RATHI, Vijay, Eknath; WO2011/138657; (2011); A1;,
Imidazole – Wikipedia,
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