Category: 636-76-0

Synthetic Route of 636-76-0, These common heterocyclic compound, 636-76-0, name is 3-Sulfamoylbenzoic acid, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

3-sulfamoylbenzoic acid (150mg, 0.746 mmol) was refluxed in the presence of concentrated Sulfuric acid (4.82 mg, 0.037 mmol) in methanol (5 ml_) at 70 C for overnight. Reaction was monitored by TLC. After completion of the reaction, Solvent was removed by vacuum and then compound was purified by flash chromatography afforded the methyl 3-sulfamoylbenzoate (1 15 mg, 0.524 mmol, 70.2 % yield) as a solid. 1 H NMR (CDCI3, 400 MHz): delta 8.53 (m, 1 H), 8.18 (d, 1 H, J = 8.0 Hz), 8.08 (d, 1 H, J = 7.6 Hz), 7.57 (t, 1 H, J = 8.0 Hz), 3.92 (s, 3H). Mass [M+H]+ :216.0

Statistics shows that 3-Sulfamoylbenzoic acid is playing an increasingly important role. we look forward to future research findings about 636-76-0.

Reference:
Patent; UNIVERSITY OF UTAH RESEARCH FOUNDATION; VANKAYALAPATI, Hariprasad; SORNA, Venkataswamy; WARNER, Steve, L.; BEARSS, David, J.; SHARMA, Sunil; STEPHENS, Bret; WO2013/25805; (2013); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 636-76-0, name is 3-Sulfamoylbenzoic acid belongs to amides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Application In Synthesis of 3-Sulfamoylbenzoic acid

To 3-aminosulfonylbenzoic acid (4.0g), N,N-dimethylformamide (53 ml), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (3.8 g), 1-hydroxybenzotriazole (2.7 g), N,O-dimethylhydroxylamine hydrochloride (1.9 g), and triethylamine (2.8 ml) were added under ice cooling and the mixture was stirred at room temperature for 12 hours. A potassium hydrogensulfate aqueous solution and ethyl acetate were added to the reaction solution and the mixture was separated. The aqueous layer was extracted with ethyl acetate. The combined organic layer was successively washed with distilled water, saturated sodium hydrogencarbonate aqueous solution, and saturated saline, dried over with anhydrous sodium sulfate, then concentrated. The obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate=1/2). To the obtained N-methoxy-N-methyl-3-aminosulfonylbenzamide (1.8 g), tetrahydrofuran (36 ml) and ethyl magnesium bromide (0.89M tetrahydrofuran solution, 41 ml) were added under ice cooling, the mixture was stirred at room temperature for 3 hours, then saturated ammonium chloride aqueous solution and ethyl acetate were added to reaction solution, the mixture was separated, then organic layer was successively washed with saturated saline, dried over with anhydrous sodium sulfate, then concentrated. The obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate=1/1). To the obtained 3-propionylbenzenesulfonamide (0.97 g), ethanol (2.5 ml), sodium acetate (0.56 g), and hydroxylamine hydrochloride (0.35 g) were added and the mixture was stirred at 90C for 3 hours. Ethyl acetate and water were added to the reaction solution, the mixture was separated, then the organic layer was successively washed with saturated saline, dried over with anhydrous sodium sulfate, then concentrated. The obtained 3-(N-hydroxypropanimidoyl)benzenesulfonamide was used instead of the starting material compound of Reference Example 109, that is, 1-(4-aminophenyl)propan-1-on oxime, for the similar procedure as with Reference Example 109 to obtain the title compound. NMR (DMSO-d6): delta8.50-8.36(3H, br), 7.92(1H, s), 7.83(1H, d, J=7.5Hz), 7.71-7.60(2H, m), 7.42(2H, s), 4.33-4.21(1H, br), 2.00-1.70(2H, m), 0.75(3H, t, J=7.4Hz) MS: 215(M+H)+

The synthetic route of 636-76-0 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Asubio Pharma Co., Ltd.; Daiichi Sankyo Company, Limited; EP2025672; (2009); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

A common heterocyclic compound, 636-76-0, name is 3-Sulfamoylbenzoic acid, molecular formula is C7H7NO4S, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. 636-76-0.

General procedure: A solution of 2-(2-methyl-1H-indol-1-yl)ethanamine (4a) (65 mg, 0.373 mmol) and 4-(piperidin-1-yl)benzoic acid (5) (76 mg, 1 eq.), and dimethylaminopyridine (catalytic, ?5 mg) in dichloromethane (6 mL) was added 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide.hydrochloride (EDCI) (92 mg, 1.3 eq.) at room temperature. The resulting reaction mixture was stirred for 6h. At the conclusion of the reaction (TLC), water (15 mL) was added to quench the reaction. The product was extracted with ethyl acetate (20mL¡Á3). Organics were washed with dilute HCl (10 mL), saturated NaHCO3 solution (10 mL), water (10 mL) and brine solution (10 mL) and dried over Na2SO4 and concentrated. The resulting crude product was subjected to silica gel chromatography eluting with 0-40% ethyl acetate in hexane to furnish 7k (TG7-152) (100mg, 74% yield). 1H NMR (CDCl3): delta 7.52 (d, J=5.6Hz, 1H), 7.49 (d, J=8.8Hz, 2H), 7.30 (d, J=8Hz, 1H), 7.07 (m, 2H), 6.80 (d, J=8.2Hz, 2H), 6.23 (s, 1H), 5.98 (t, J=5.4Hz, 1H), 4.33 (t, J=6Hz, 2H), 3.76 (q, J=6Hz, 2H), 3.25 (t, J=4.8Hz, 4H), 2.37 (s, 3H), 1.6 (m, 6H). LCMS (ESI): >97% purity at lambda 254, MS; m/z, 362 [M+H]+. Anal. Calcd. for C23H27N3O: C, 76.42; H, 7.53; N, 11.62; found; C, 76.48; H, 7.55; N, 11.59.

The synthetic route of 3-Sulfamoylbenzoic acid has been constantly updated, and we look forward to future research findings.

Reference:
Article; Ganesh, Thota; Jiang, Jianxiong; Dingledine, Ray; European Journal of Medicinal Chemistry; vol. 82; (2014); p. 521 – 535;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

636-76-0,Some common heterocyclic compound, 636-76-0, name is 3-Sulfamoylbenzoic acid, molecular formula is C7H7NO4S, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

a. 3-Sulfamoylbenzoyl chloride 10 g of ground 3-sulfamoylbenzoic acid were reacted as prescribed in Example 70b), the thionyl chloride was distilled off and the residue was crystallized under a mixture of petroleum ether and diethyl ether (1:1). Melting point: 123 C.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 3-Sulfamoylbenzoic acid, its application will become more common.

Reference:
Patent; Hoechst Aktiengesellschaft; US4061761; (1977); A;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics