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inquiry4-(BENZYLOXY)-A-[[TERT-BUTYLAMINO]METHYL]-M-XYLENE-A,A'-DIOLAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
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inquirymethyl 5-[2-[(1,1-dimethylethyl)amino]-1-hydroxyethyl]-2-(benzyloxy) benzoate
α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol
Conditions | Yield |
---|---|
With sodium bis(2-methoxyethoxy)aluminium dihydride In toluene at 60℃; for 1h; Inert atmosphere; | 90% |
diacetate salt of (S)-salbutamol
diacetate salt of (R)-salbutamol
α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol
Conditions | Yield |
---|---|
With sodium hydroxide; water at 80 - 85℃; for 15 - 16h; |
5-acetyl-2-benzyloxybenzoic acid methyl ester
α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: hydrogen bromide; water; dimethyl sulfoxide / acetonitrile / 4 h / 40 - 60 °C / Inert atmosphere 2: Isopropyl acetate / 2.5 h / 40 °C / Inert atmosphere 3: sodium tetrahydroborate / methanol / 2.33 h / 20 - 35 °C / Inert atmosphere 4: sodium bis(2-methoxyethoxy)aluminium dihydride / toluene / 1 h / 60 °C / Inert atmosphere View Scheme |
α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: Isopropyl acetate / 2.5 h / 40 °C / Inert atmosphere 2: sodium tetrahydroborate / methanol / 2.33 h / 20 - 35 °C / Inert atmosphere 3: sodium bis(2-methoxyethoxy)aluminium dihydride / toluene / 1 h / 60 °C / Inert atmosphere View Scheme |
α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium tetrahydroborate / methanol / 2.33 h / 20 - 35 °C / Inert atmosphere 2: sodium bis(2-methoxyethoxy)aluminium dihydride / toluene / 1 h / 60 °C / Inert atmosphere View Scheme |
benzyl bromide
α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: potassium carbonate / acetonitrile / 0.75 h / Inert atmosphere 1.2: 2 h / Reflux; Inert atmosphere 2.1: hydrogen bromide; water; dimethyl sulfoxide / acetonitrile / 4 h / 40 - 60 °C / Inert atmosphere 3.1: Isopropyl acetate / 2.5 h / 40 °C / Inert atmosphere 4.1: sodium tetrahydroborate / methanol / 2.33 h / 20 - 35 °C / Inert atmosphere 5.1: sodium bis(2-methoxyethoxy)aluminium dihydride / toluene / 1 h / 60 °C / Inert atmosphere View Scheme |
estere metilico dell'acido 5-acetilsalicilico
α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: potassium carbonate / acetonitrile / 0.75 h / Inert atmosphere 1.2: 2 h / Reflux; Inert atmosphere 2.1: hydrogen bromide; water; dimethyl sulfoxide / acetonitrile / 4 h / 40 - 60 °C / Inert atmosphere 3.1: Isopropyl acetate / 2.5 h / 40 °C / Inert atmosphere 4.1: sodium tetrahydroborate / methanol / 2.33 h / 20 - 35 °C / Inert atmosphere 5.1: sodium bis(2-methoxyethoxy)aluminium dihydride / toluene / 1 h / 60 °C / Inert atmosphere View Scheme |
α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol
Lg-tartaric acid mono-(4-nitro-anilide)
4-nitro tartranilic acid salt of (R)-isomer of 4-benzyl salbutamol
Conditions | Yield |
---|---|
Stage #1: α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol; Lg-tartaric acid mono-(4-nitro-anilide) In ethyl acetate; isopropyl alcohol at 75℃; for 44h; Resolution of racemate; Stage #2: In ethyl acetate; isopropyl alcohol at 70 - 75℃; for 2h; | 90% |
In ethyl acetate; isopropyl alcohol at 75℃; for 44h; | 90% |
α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol
Conditions | Yield |
---|---|
Stage #1: α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol With palladium 10% on activated carbon; hydrogen In ethanol at 50℃; under 1500.15 Torr; for 2h; Stage #2: With sulfuric acid In ethanol at 15℃; | 77% |
α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol
3,5-dinitrobenzoic acid
Conditions | Yield |
---|---|
In methanol at 21 - 60℃; for 18.33h; Product distribution / selectivity; | 14.2% |
In 1-methyl-pyrrolidin-2-one; 2-methyl-propan-1-ol; water at 22 - 60℃; for 0.333333h; Product distribution / selectivity; Surfactant (polyethoxylate of nonylphenol (HLB >10): Synperonic NP10); | 10.4% |
α1-[[(1,1-dimethylethyl)amino]methyl]-4-(benzyloxy)-1,3-benzenedimethanol
acetic anhydride
A
diacetate salt of (S)-salbutamol
B
diacetate salt of (R)-salbutamol
Conditions | Yield |
---|---|
at 100 - 105℃; for 2h; Reflux; |
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