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CAS No.: | 3652-92-4 |
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Name: | 1,3-Dimethyl-1,3-dihydro-2-phenyl-2H-benzimidazole |
Article Data: | 29 |
Molecular Structure: | |
Formula: | C15H16N2 |
Molecular Weight: | 224.305 |
Synonyms: | 1,3-Dimethyl-2-phenyl-2,3-dihydro-1H-benzimidazol;Benzimidazoline,1,3-dimethyl-2-phenyl;1,3-Dimethyl-2-phenylbenzimidazolin;HMS1473O11;1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzimidazole;1,3-Dimethyl-2-phenylbenzimidazoline;1,3-dimethyl-2-phenyl-2,3-dihydrobenzimidazoline;1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzoimidazole; |
Density: | 1.095g/cm3 |
Melting Point: | 93-94 °C |
Boiling Point: | 359.9°C at 760 mmHg |
Flash Point: | 160.2°C |
PSA: | 6.48000 |
LogP: | 3.40140 |
benzaldehyde
N,N'-dimethyl-1,2-phenylenediamine
1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole
Conditions | Yield |
---|---|
With copper(II) bis(trifluoromethanesulfonate) In water at 20℃; for 0.0333333h; | 100% |
With acetic acid In methanol at 20℃; for 0.5h; | 86% |
With acetic acid In methanol for 0.5h; Ambient temperature; | 65% |
1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole
Conditions | Yield |
---|---|
With sodium tetrahydroborate In methanol for 1h; Reduction; | 90% |
With 1-Benzyl-1,4-dihydronicotinamide In water; isopropyl alcohol at 25℃; pH=6; Equilibrium constant; Reduction; |
N,N’-dimethyl-2-phenyl-benzo[d]imidazolium iodide
1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole
Conditions | Yield |
---|---|
With methanol; sodium tetrahydroborate at 20℃; for 1h; Inert atmosphere; | 89% |
With methanol; sodium tetrahydroborate at 0 - 20℃; Inert atmosphere; | 77% |
With sodium tetrahydroborate In methanol at 20℃; for 0.5h; | 70% |
1,3-dimethylbenzimidazolium Iodide
phenylmagnesium bromide
1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole
Conditions | Yield |
---|---|
In tetrahydrofuran for 11h; Heating; | 77% |
N-methyl-2-(N-methyl-hydrazino)-aniline
benzaldehyde
1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole
Conditions | Yield |
---|---|
With acetic acid |
N-methyl-2-(N-methyl-hydrazino)-aniline
benzaldehyde
acetic acid
1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole
2-phenyl-2,3-dihydro-1H-benzo[d]imidazole
methyl iodide
1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole
Conditions | Yield |
---|---|
Stage #1: 2-phenyl-2,3-dihydro-1H-benzoimidazole; methyl iodide With sodium hydroxide In methanol at 110℃; Stage #2: With sodium tetrahydroborate In methanol for 1h; Further stages.; |
N,N’-dimethyl-N,N’-di(p-toluenesulfonyl)-o-phenylenediamine
1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: H2O; H2SO4 / 4 h / 85 °C View Scheme | |
Multi-step reaction with 2 steps 1: conc. sulphuric acid / 4 h / Heating 2: 65 percent / glacial acetic acid / methanol / 0.5 h / Ambient temperature; other aromatic aldehydes View Scheme | |
Multi-step reaction with 2 steps 1: sulfuric acid / 4 h / 85 °C 2: dichloromethane / 12 h / 0 - 20 °C / Molecular sieve; Inert atmosphere View Scheme |
1,2-bis-(p-methylphenylsulfonamido)-benzene
1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 4 N aq. sodium hydroxide / 0.33 h / Heating 2: conc. sulphuric acid / 4 h / Heating 3: 65 percent / glacial acetic acid / methanol / 0.5 h / Ambient temperature; other aromatic aldehydes View Scheme |