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3-O-Methyldopamine hydrochloride

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Name

3-O-Methyldopamine hydrochloride

EINECS 216-035-1
CAS No. 1477-68-5 Density N/A
PSA 55.48000 LogP 2.40430
Solubility N/A Melting Point 213-215 °C(lit.)
Formula C9H13NO2.ClH Boiling Point 304.5 °C at 760 mmHg
Molecular Weight 203.669 Flash Point 138 °C
Transport Information N/A Appearance light beige crystalline solid
Safety 26-36 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 1477-68-5 (3-O-Methyldopamine hydrochloride) Hazard Symbols IrritantXi
Synonyms

2-Methoxytyramine hydrochloride;3-Methoxy-4-hydroxyphenethylamine hydrochloride;Guaiacol,4-(2-aminoethyl)-, hydrochloride (6CI);Phenol, 4-(2-aminoethyl)-2-methoxy-,hydrochloride (8CI,9CI);4-Hydroxy-3-methoxyphenethylaminehydrochloride;4-Hydroxy-3-methoxy-b-phenethylamine hydrochloride;4-(2-Aminoethyl)-2-methoxyphenol hydrochloride;

Article Data 8

3-O-Methyldopamine hydrochloride Synthetic route

4468-59-1

4-hydroxy-3-methoxyphenylacetonitrile

1477-68-5

3-Methoxytyramine hydrochloride

Conditions
ConditionsYield
With hydrogenchloride; hydrogen; palladium on activated charcoal In ethanol at 20℃; for 12h;82%
With hydrogenchloride; hydrogen; palladium on activated charcoal In ethanol under 7600 - 11400 Torr; for 1.5h;75%
6178-42-3

vanillalnitromethane

1477-68-5

3-Methoxytyramine hydrochloride

Conditions
ConditionsYield
With hydrogenchloride; hydrogen; palladium on activated charcoal In ethanol at 0℃; under 760 Torr;81%
With hydrogenchloride; zinc In ethanol; water at 40 - 60℃; for 3h;67.08%
Multi-step reaction with 2 steps
1.1: sodium tetrahydroborate / 1,4-dioxane; ethanol / 20 °C
2.1: hydrogenchloride; zinc / ethyl acetate; water / 3 h / 50 - 70 °C
2.2: 2 h / -20 °C
View Scheme
63909-38-6, 1860-56-6

3-methoxy-4-benzyloxy-ω-nitrostyrolene

1477-68-5

3-Methoxytyramine hydrochloride

Conditions
ConditionsYield
With hydrogenchloride; hydrogen; iron(III) chloride; platinum In water for 4h;76%
528594-30-1

2-methoxy-4-(2-nitroethyl)phenol

1477-68-5

3-Methoxytyramine hydrochloride

Conditions
ConditionsYield
Stage #1: 2-methoxy-4-(2-nitroethyl)phenol With hydrogenchloride; zinc In water; ethyl acetate at 50 - 70℃; for 3h;
Stage #2: With hydrogenchloride In methanol at -20℃; for 2h;
72%
Stage #1: 2-methoxy-4-(2-nitroethyl)phenol With palladium 10% on activated carbon; hydrogen In ethanol at 20℃;
Stage #2: With hydrogenchloride In water
31%
2426-87-1

3-methoxy-4-(phenylmethoxy)benzaldehyde

1477-68-5

3-Methoxytyramine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 71 percent / KOH, tetrabutylammonium bromide / ethanol / 1 h / 0 °C
2: 85 percent / AcONa. Ac2O / 0.08 h / Heating
3: 76 percent / conc. aq. HCl, FeCl3, H2 / Pt black / H2O / 4 h
View Scheme
Multi-step reaction with 2 steps
1: 72 percent / KOH / aq. ethanol / 2 h / 0 °C
2: 76 percent / conc. aq. HCl, FeCl3, H2 / Pt black / H2O / 4 h
View Scheme
60372-07-8

1-(3-methoxy-4-benzyloxyphenyl)-2-nitroethanol

1477-68-5

3-Methoxytyramine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 85 percent / AcONa. Ac2O / 0.08 h / Heating
2: 76 percent / conc. aq. HCl, FeCl3, H2 / Pt black / H2O / 4 h
View Scheme
121-33-5

vanillin

<4-oxy-3-methoxy-phenyl>-bis-<4-dimethylamino-phenyl>-methane

<4-oxy-3-methoxy-phenyl>-bis-<4-dimethylamino-phenyl>-methane

1477-68-5

3-Methoxytyramine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 100 percent / K2CO3, tetrabutylammonium bromide / dimethylformamide / 5 h / 18 - 20 °C
2: 71 percent / KOH, tetrabutylammonium bromide / ethanol / 1 h / 0 °C
3: 85 percent / AcONa. Ac2O / 0.08 h / Heating
4: 76 percent / conc. aq. HCl, FeCl3, H2 / Pt black / H2O / 4 h
View Scheme
Multi-step reaction with 3 steps
1: 100 percent / K2CO3, tetrabutylammonium bromide / dimethylformamide / 5 h / 18 - 20 °C
2: 72 percent / KOH / aq. ethanol / 2 h / 0 °C
3: 76 percent / conc. aq. HCl, FeCl3, H2 / Pt black / H2O / 4 h
View Scheme
498-00-0

4-hydroxymethyl-2-methoxyphenol

1477-68-5

3-Methoxytyramine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 60 percent / dimethylformamide / 20 h / 130 °C
2: 82 percent / H2; HCl / Pd/C / ethanol / 12 h / 20 °C
View Scheme
29121-49-1

2-(4-hydroxy-3-methoxyphenyl)acetamide

1477-68-5

3-Methoxytyramine hydrochloride

Conditions
ConditionsYield
Stage #1: 2-(4-hydroxy-3-methoxyphenyl)acetamide With borane-THF In tetrahydrofuran at 0℃; for 8h; Reflux;
Stage #2: With hydrogenchloride In water for 3h; Reflux;
54.2 g
121-33-5

vanillin

1477-68-5

3-Methoxytyramine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: methanol; methylamine / 2 h / 50 °C
2.1: sodium tetrahydroborate / 1,4-dioxane; ethanol / 20 °C
3.1: hydrogenchloride; zinc / ethyl acetate; water / 3 h / 50 - 70 °C
3.2: 2 h / -20 °C
View Scheme
Multi-step reaction with 3 steps
1: ethylenediamine / 4 h / Reflux
2: sodium tetrahydroborate / tetrahydrofuran; methanol / 0 - 20 °C
3: palladium 10% on activated carbon; hydrogen / ethanol / 20 °C
View Scheme

3-O-Methyldopamine hydrochloride Specification

This chemical is called 5-(2-Aminoethyl)guaiacol hydrochloride, and its systematic name is 2-(4-hydroxy-3-methoxyphenyl)ethanaminium chloride. With the molecular formula of C9H13NO2.ClH, its CAS registry number of this chemical is 1477-68-5. It's often used as intermediate for dopamine. Additionally, this chemcial should be stored at the temperature of -20 °C.

Other characteristics of the 5-(2-Aminoethyl)guaiacol hydrochloride can be summarised as followings: (1)ACD/LogP: 0.43; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 3; (4)#H bond donors: 3; (5)#Freely Rotating Bonds: 5; (6)Polar Surface Area: 18.46 Å2; (7)Flash Point: 138 °C; (8)Enthalpy of Vaporization: 56.66 kJ/mol; (9)Boiling Point: 304.5 °C at 760 mmHg; (10)Vapour Pressure: 0.000484 mmHg at 25°C.

Production method of this chemical: The 5-(2-Aminoethyl)guaiacol hydrochloride could be obtained by the reactant of 4-benzyloxy-3-methoxy-b-nitro-styrene. This reaction needs the reagents of conc. aq. HCl, FeCl3, H2, and the catalyst of Pt black. The yield is 76 %. In addition, this reaction should be taken for 4 hours.

Uses of this chemical: The 5-(2-Aminoethyl)guaiacol hydrochloride could react with nonanoic acid 2,5-dioxo-pyrrolidin-1-yl ester, and obtain the N-[2-(4-hydroxy-3-methoxyphenyl)ethyl]nonanamide. This reaction needs the reagent of Et3N, and the solvent of ethyl acetate. The yield is 46 %. In addition, this reaction should be taken for 12 hours.

When you are using this chemical, please be cautious about it as the following: This chemical is irritating to eyes, respiratory system and skin. You should wear suitable protective clothing if you use it. In case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
1.SMILES: [Cl-].Oc1ccc(cc1OC)CC[NH3+]
2.InChI: InChI=1/C9H13NO2.ClH/c1-12-9-6-7(4-5-10)2-3-8(9)11;/h2-3,6,11H,4-5,10H2,1H3;1H
3.InChIKey: AWRIOTVUTPLWLF-UHFFFAOYAN

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