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4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid
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Name

4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid

 EINECS 275-833-8
CAS No. 71675-87-1 Density 1.39 g/cm3
PSA 115.07000 LogP 2.43120
Solubility 8.555g/L at 25℃ Melting Point 82-85 °C
Formula C10H13NO5S Boiling Point 529.6 °C at 760 mmHg
Molecular Weight 259.283 Flash Point 274.1 °C
Transport Information N/A Appearance Slightly pink solid
Safety Risk Codes N/A
Molecular Structure Molecular Structure of 71675-87-1 (4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid) Hazard Symbols N/A
Synonyms

4-Amino-5-(ethylsulphonyl)-o-anisic acid;

Article Data 3

4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid Synthetic route

1119455-01-4

methyl 4-amino-5-(ethylthio)-2-methoxybenzoate

71675-87-1

2-methoxy-4-amino-5-ethylsulphonyl benzoic acid

Conditions
ConditionsYield
Stage #1: methyl 4-amino-5-(ethylthio)-2-methoxybenzoate With dihydrogen peroxide; sodium tungstate In isopropyl alcohol at 40 - 45℃; Industry scale;
Stage #2: With water; sodium hydroxide In isopropyl alcohol at 60 - 65℃; Industry scale;
Stage #3: With hydrogenchloride In water; isopropyl alcohol pH=4 - 4.5; Industry scale;		82%
Multi-step reaction with 2 steps
1.1: sodium hydroxide; water / methanol / 65 °C / Industry scale
1.2: 5 - 10 °C / pH 4 - 4.5 / Industry scale
2.1: dihydrogen peroxide / sodium tungstate / water; methanol / 5 h / 20 - 30 °C
View Scheme

2-methoxy-4-amino-5-ethylthio benzoic acid

71675-87-1

2-methoxy-4-amino-5-ethylsulphonyl benzoic acid

Conditions
ConditionsYield
With dihydrogen peroxide; sodium tungstate In methanol; water at 20 - 30℃; for 5h; Product distribution / selectivity;80%
27492-84-8

Methyl 4-amino-2-methoxybenzoate

71675-87-1

2-methoxy-4-amino-5-ethylsulphonyl benzoic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: bromine / methanol / 5 - 15 °C / Industry scale
2.1: sodium sulfide / water; acetone / 5 - 15 °C / Industry scale
3.1: sodium hydroxide; water / methanol / 65 °C / Industry scale
3.2: 5 - 10 °C / pH 4 - 4.5 / Industry scale
4.1: dihydrogen peroxide / sodium tungstate / water; methanol / 5 h / 20 - 30 °C
View Scheme
Multi-step reaction with 3 steps
1.1: bromine / methanol / 5 - 15 °C / Industry scale
2.1: sodium sulfide / water; acetone / 5 - 15 °C / Industry scale
3.1: dihydrogen peroxide / sodium tungstate / isopropyl alcohol / 40 - 45 °C / Industry scale
3.2: 60 - 65 °C / Industry scale
3.3: pH 4 - 4.5 / Industry scale
View Scheme
65-49-6

4-Aminosalicylic acid

71675-87-1

2-methoxy-4-amino-5-ethylsulphonyl benzoic acid

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: potassium hydroxide; tetrabutylammomium bromide / acetone / 1 h / 25 - 35 °C / Industry scale
2.1: bromine / methanol / 5 - 15 °C / Industry scale
3.1: sodium sulfide / water; acetone / 5 - 15 °C / Industry scale
4.1: sodium hydroxide; water / methanol / 65 °C / Industry scale
4.2: 5 - 10 °C / pH 4 - 4.5 / Industry scale
5.1: dihydrogen peroxide / sodium tungstate / water; methanol / 5 h / 20 - 30 °C
View Scheme
Multi-step reaction with 4 steps
1.1: potassium hydroxide; tetrabutylammomium bromide / acetone / 1 h / 25 - 35 °C / Industry scale
2.1: bromine / methanol / 5 - 15 °C / Industry scale
3.1: sodium sulfide / water; acetone / 5 - 15 °C / Industry scale
4.1: dihydrogen peroxide / sodium tungstate / isopropyl alcohol / 40 - 45 °C / Industry scale
4.2: 60 - 65 °C / Industry scale
4.3: pH 4 - 4.5 / Industry scale
View Scheme
59168-56-8

methyl 4-amino-2-methoxy-5-thiocyanatobenzoate

71675-87-1

2-methoxy-4-amino-5-ethylsulphonyl benzoic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: sodium sulfide / water; acetone / 5 - 15 °C / Industry scale
2.1: sodium hydroxide; water / methanol / 65 °C / Industry scale
2.2: 5 - 10 °C / pH 4 - 4.5 / Industry scale
3.1: dihydrogen peroxide / sodium tungstate / water; methanol / 5 h / 20 - 30 °C
View Scheme
Multi-step reaction with 2 steps
1.1: sodium sulfide / water; acetone / 5 - 15 °C / Industry scale
2.1: dihydrogen peroxide / sodium tungstate / isopropyl alcohol / 40 - 45 °C / Industry scale
2.2: 60 - 65 °C / Industry scale
2.3: pH 4 - 4.5 / Industry scale
View Scheme
71675-87-1

2-methoxy-4-amino-5-ethylsulphonyl benzoic acid

168828-90-8

(S)-N-[[3-[3-fluoro-4-[4-morpholinyl]phenyl]-2-oxo-5-oxazolidinyl]methyl]amine

1390617-35-2

4-amino-5-(ethylsulfonyl)-N-(S)-[[3-[3-fluoro-4-(morpholin-4-yl)phenyl]-2-oxooxazolidin-5-yl]methyl]-2-methoxybenzamide

Conditions
ConditionsYield
Stage #1: 2-methoxy-4-amino-5-ethylsulphonyl benzoic acid With chloroformic acid ethyl ester; triethylamine In dichloromethane at 0 - 20℃; for 0.5h;
Stage #2: (S)-N-[[3-[3-fluoro-4-[4-morpholinyl]phenyl]-2-oxo-5-oxazolidinyl]methyl]amine In dichloromethane at 0 - 20℃; for 4h;		93%
26116-12-1

1-ethyl-2-pyrrolidinemethanamine

71675-87-1

2-methoxy-4-amino-5-ethylsulphonyl benzoic acid

71675-85-9

amisulpride

Conditions
ConditionsYield
Stage #1: 2-methoxy-4-amino-5-ethylsulphonyl benzoic acid With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 10 - 20℃; for 1.5h;
Stage #2: 1-ethyl-2-pyrrolidinemethanamine With triethylamine In acetonitrile at 80℃; for 2h;		86.8%
With C36H24B4N2O3 In toluene for 14h; Molecular sieve; Reflux; chemoselective reaction;76%
With chloroformic acid ethyl ester; triethylamine In acetone at 0 - 30℃;70%
71675-87-1

2-methoxy-4-amino-5-ethylsulphonyl benzoic acid

22795-99-9

(S)-2-(Aminomethyl)-1-ethylpyrrolidine

541-41-3

chloroformic acid ethyl ester

(-)-Amisulpride

Conditions
ConditionsYield
In acetone84%
71675-87-1

2-methoxy-4-amino-5-ethylsulphonyl benzoic acid

C20H24N2O9S2

Conditions
ConditionsYield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 25 - 40℃; for 12h; Reagent/catalyst; Solvent;72.52%

1-allyl 2-aminoethylpyrrolidine

71675-87-1

2-methoxy-4-amino-5-ethylsulphonyl benzoic acid

541-41-3

chloroformic acid ethyl ester

71675-89-3

N-[1-allyl 2-pyrrolidylmethyl] 2-methoxy 4-amino 5-ethylsulphonyl benzamide

Conditions
ConditionsYield
With hydrogenchloride; triethylamine In water; acetone67%

4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid Specification

The 4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid is an organic compound with the formula C10H13NO5S. The IUPAC name of this chemical is 4-amino-5-ethylsulfonyl-2-methoxybenzoic acid. With the CAS registry number 71675-87-1, it is also named as benzoic acid, 4-amino-5-(ethylsulfonyl)-2-methoxy-. The product's categories are Organic Acids; API Intermediates; Aromatics Compounds; Amines; Aromatics; Sulfur & Selenium Compounds. Besides, it is a slightly pink solid.

Physical properties about 4-Amino-5-ethylsulfonyl-2-methoxybenzoic acid are: (1)ACD/LogP: 1.57; (2)ACD/LogD (pH 5.5): 0.15; (3)ACD/LogD (pH 7.4): -1.35; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 6.51; (7)ACD/KOC (pH 7.4): 1; (8)#H bond acceptors: 6; (9)#H bond donors: 3; (10)#Freely Rotating Bonds: 5; (11)Polar Surface Area: 81.29 Å2; (12)Index of Refraction: 1.568; (13)Molar Refractivity: 61.08 cm3; (14)Molar Volume: 186.5 cm3; (15)Polarizability: 24.21×10-24cm3; (16)Surface Tension: 56 dyne/cm; (17)Density: 1.39 g/cm3; (18)Flash Point: 274.1 °C; (19)Enthalpy of Vaporization: 84.71 kJ/mol; (20)Boiling Point: 529.6 °C at 760 mmHg; (21)Vapour Pressure: 4.78E-12 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=S(=O)(c1c(cc(OC)c(C(=O)O)c1)N)CC
(2)InChI: InChI=1/C10H13NO5S/c1-3-17(14,15)9-4-6(10(12)13)8(16-2)5-7(9)11/h4-5H,3,11H2,1-2H3,(H,12,13)
(3)InChIKey: OJVNCXHGGYYOPH-UHFFFAOYAY
(4)Std. InChI: InChI=1S/C10H13NO5S/c1-3-17(14,15)9-4-6(10(12)13)8(16-2)5-7(9)11/h4-5H,3,11H2,1-2H3,(H,12,13)
(5)Std. InChIKey: OJVNCXHGGYYOPH-UHFFFAOYSA-N

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