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CAS No.: | 57683-71-3 |
---|---|
Name: | 2-Carbomethoxybenzenesulfonamide |
Article Data: | 20 |
Molecular Structure: | |
Formula: | C8H9NO4S |
Molecular Weight: | 215.23 |
Synonyms: | Benzoicacid, o-sulfamoyl-, methyl ester (7CI);2-(Methoxycarbonyl)benzenesulfonamide;Methyl 2-(aminosulfonyl)benzoate;Methyl2-sulfamoylbenzoate; |
EINECS: | 260-903-2 |
Density: | 1.377 g/cm3 |
Melting Point: | 126-128 °C(lit.) |
Boiling Point: | 401.4 °C at 760 mmHg |
Flash Point: | 196.6 °C |
Appearance: | Greyish crystal powder |
Hazard Symbols: | Xi |
Risk Codes: | 36/37/38 |
Safety: | 26-37/39 |
PSA: | 94.84000 |
LogP: | 1.90170 |
Conditions | Yield |
---|---|
With sulfuric acid at 10 - 70℃; for 12h; Time; | 89% |
With sulfuric acid In methanol for 12h; Reflux; | 65% |
at 170℃; |
Conditions | Yield |
---|---|
With sulfuric acid | |
With hydrogenchloride |
saccharin
methyl 2-(aminosulfonyl)benzoate
Conditions | Yield |
---|---|
With phosphorus pentachloride at 70 - 75℃; tropfenweiser Zusatz von Methylalkohol zu dem stark abgekuehlten Produkt und Kochen der ausgeschiedenen Krystalle mit Methylalkohol; |
Metsulfuron-methyl
A
benzoic acid methyl ester
B
methyl 2-(aminosulfonyl)benzoate
C
2-(methoxycarbonyl)benzenesulfonyl isocyanate
D
4-methoxy-6-methyl-1,3,5-triazin-2-amine
F
3-(methoxy)-1,2-benzisothiazole 1,1-dioxide
Conditions | Yield |
---|---|
at 800℃; for 0.00138889h; Product distribution; study of the pyrolysis of various sulfonylureas; other sulfonylureas and their products; |
2-methoxycarbonylbenzenesulfonyl chloride
methyl 2-(aminosulfonyl)benzoate
Conditions | Yield |
---|---|
With pyridine; Rink amide resin; trifluoroacetic acid 1.) CH2Cl2, room temp., 15 h, 2.) CH2Cl2, 15 min; Yield given. Multistep reaction; | |
With ammonium hydroxide In acetonitrile at 0 - 20℃; for 1h; Inert atmosphere; |
A
carbon dioxide
B
methyl 2-(aminosulfonyl)benzoate
Conditions | Yield |
---|---|
With phosphoric acid In various solvent(s) at 25℃; pH=1.21; Kinetics; Activation energy; Further Variations:; pH-values; Temperatures; Reagents; Hydrolysis; |
Metsulfuron-methyl
A
methyl 2-(aminosulfonyl)benzoate
B
4-methoxy-6-methyl-1,3,5-triazin-2-amine
Conditions | Yield |
---|---|
In water at 45℃; pH=2; Kinetics; Further Variations:; pH-values; Temperatures; |
Metsulfuron-methyl
A
methyl 2-(aminosulfonyl)benzoate
C
4-methoxy-6-methyl-1,3,5-triazin-2-amine
Conditions | Yield |
---|---|
With HO(1-)*Fe(3+)*H2O In water pH=3.5; Irradiation; |
methyl 2-(aminosulfonyl)benzoate
saccharin
Conditions | Yield |
---|---|
With potassium hydroxide at 64℃; pH=9; Reagent/catalyst; | 98.19% |
methyl 2-(aminosulfonyl)benzoate
Ethyl 2-benzylacetoacetate
Conditions | Yield |
---|---|
Stage #1: methyl 2-(aminosulfonyl)benzoate; Ethyl 2-benzylacetoacetate With N,N,N,N,-tetramethylethylenediamine; lithium diisopropyl amide In tetrahydrofuran at 0℃; for 3.5h; Stage #2: With hydrogenchloride In tetrahydrofuran | 95% |