1H-Benzimidazole-5-methanol,1,2-dimethyl-(9CI)

General procedure: Step 1-1-5 (1-Methyl-1H-benzimidazol-5-yl)methanol Under an argon gas flow, lithium aluminum hydride (9.70 g, 256 mmol) was suspended in tetrahydrofuran (100 ml); and under an ice cooling, a solution (100 ml) of ethyl 1-methyl-1H-benzimidazole-5-carboxylate (26.1 g, 128 mmol) prepared in the Step 1-1-4 in tetrahydrofuran was slowly added thereto. The mixture was stirred under an ice cooling for one hour. Under an ice cooling, a saturated sodium bicarbonate solution was slowly added to the mixture. The precipitate was removed by filtration, and the residue was concentrated. The concentrate was dissolved in chloroform, and the solution was washed with a saturated sodium bicarbonate solution and then concentrated. The concentrate was purified by silica gel column chromatography (chloroform:methanol=10:1 to 5:1) to give the title compound (11.4 g, 55%) as a light-red powder. 1H-NMR (CDCl3) delta: 7.85 (s, 1H), 7.77 (s, 1H), 7.37-7.34 (m, 2H), 4.80 (s, 2H), 3.84 (s, 3H), 1.92 (brs, 1H) Mass, m/z: 162 (M+), 133 (base)a) To a solution of Methyl 1, 2-dimethyl-1H-benzo[d]imidazole-5-carboxylate (500 mg, 2.448 mmol) in THF (24.5 ml) Lithiumaluminium hydride (1 M in THF, 2.44 ml) was added at 0 C. After 2 hours sodium sulfate decahydrate and citric acid was added to the reaction to destroy the excess of lithiumaluminiumhydride. After 1 hour, methanol (25 ml) was added and the fine suspension was filtered off. The filtrate was evaporated under reduced pressure to afford a brown solid. EA (50 ml) was added and the suspension was treated in an ultra sonic bath. The solid was filtered off and this procedure was repeated twice. The yellow filtrate was evaporated under reduced pressure to afford crude

Molecular Weight:176.21
XLogP3:1
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:1
Exact Mass:176.094963011
Monoisotopic Mass:176.094963011
Topological Polar Surface Area:38
Heavy Atom Count:13
Complexity:186
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes