Tag: M.W=200-300

4943-86-6, name is 2-Amino-N-(4-chlorophenyl)benzamide, belongs to amides-buliding-blocks compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. COA of Formula: C13H11ClN2O

General procedure: A flask was charged with 2-aminobenzamide (1a; 27.2 mg, 0.2 mmol), pentane-2,4-dione (2A;30.0 mg, 0.3 mmol), FeCl3¡¤6H2O (10.8 mg, 0.04 mmol), and PEG-400/H2O (1.0 mL, 1:9 (v/v)).The reaction was stirred at 100 C for 24 h. When the reaction was complete monitored by TLC,the mixture was cooled to room temperature, extracted with EtOAc (3¡Á20 mL). The combined organic phase was washed with water, dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography to give the product 3aA (29.3 mg, 91%) as white solid.

The synthetic route of 4943-86-6 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Shen, Guanshuo; Zhou, Haifeng; Sui, Yuebo; Liu, Qixing; Zou, Kun; Tetrahedron Letters; vol. 57; 5; (2016); p. 587 – 590;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 579474-47-8, name is tert-Butyl 2-amino-4-fluorophenylcarbamate, belongs to amides-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 579474-47-8, Recommanded Product: 579474-47-8

Example M4 {4-Fluoro-2-[3-oxo-3-(3-pyridin-3-yl-phenyl)-propionylamino]-phenyl}-carbamic acid tert-butyl ester The title compound was prepared from (2-amino-4-fluoro-phenyl)-carbamic acid tert-butyl ester (Example J2) (83 mg, 0.37 mmol) and 3-oxo-3-(3-pyridin-3-yl-phenyl)-propionic acid tert-butyl ester (Example K1) (109 mg, 0.37 mmol) according to the general procedure M. Obtained as a light yellow amorphous substance (127 mg). MS (ISP) 450 [(M+H)+].

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, tert-Butyl 2-amino-4-fluorophenylcarbamate, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Adam, Geo; Goetschi, Erwin; Wichmann, Juergen; Woltering, Thomas Johannes; US2003/166639; (2003); 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. 22808-73-7, name is Methyl 4-sulfamoylbenzoate belongs to amides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Computed Properties of C8H9NO4S

B. 4-(4-Oxo-2-m-tolyl-pentanoylsulfamoyl)-benzoic acid methyl ester. To a stirred solution of 4-sulfamoyl-benzoic acid methyl ester (6.01 g, 27.8 mmol), 4-oxo-2-m-tolyl-pentanoic acid (6.35 g, 30.7 mmol), N,N-diisopropylethylamine (12.2 mL, 69.5 mmol), and DMAP (5 mole %) in CH2Cl2 (275 mL) at rt under N2 was added bromo-tripyrrolidino-phosphonium hexafluorophosphate (PyBroP) (18.1 g, 38.9 mmol), and the reaction mixture was allowed to stir overnight. The mixture was diluted with 1 M HCl (100 mL) and CH2Cl2 (150 mL), and the layers were separated. The organic phase was washed with 1 M HCl (1*100 mL), 1N NaOH (1*100 mL) and brine (1*100 mL). The organic layer was dried over Na2SO4, and then filtered, and the solvent was removed under reduced pressure. Purification on silica gel (0-15% EtOAc in hexane) gave. 12.0 g (99%) of desired ester as a white solid. 1H NMR (400 MHz, CDCl3): 8.15 (d, J=8.6 Hz, 2H), 7.99 (d, J=8.6 Hz, 2H), 7.18 (t, J=7.6 Hz, 1H), 7.10 (d, J=7.6 Hz, 1H), 6.87 (m, 2H), 3.97 (s, 3H), 3.93 (dd. J=4.3 and 9.5 Hz, 1H), 3.29 (dd. J=9.5 and 18.1 Hz, 1H), 2.60 (dd. J=4.3 and 18.1 Hz, 1H), 2.28 (s, 3H), 2.07 (s, 3H).

The synthetic route of 22808-73-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Deng, Xiaohu; Mani, Neelakandha; Mapes, Christopher M.; US2006/4195; (2006); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 53844-02-3, name is Benzyl (2-bromoethyl)carbamate, A new synthetic method of this compound is introduced below., Recommanded Product: 53844-02-3

The compound of Reference Example 55 (12.3 g) was dissolved in dimethylformamide (100 ml), and thereto were added cesium carbonate (15.3 g) and the compound of Reference Example 42 (8.75 g), and the mixture was vigorously stirred at 80C for 5 hours. The mixture was filtered to remove the cesium carbonate, and water was added to the filtrate, and extracted with ethyl acetate. The organic layer was washed with 1N hydrochloric acid and saturated aqueous sodium chloride solution, dried over sodium sulfate, filtered and concentrated under reduced pressure. The obtained residue was purified by silica gel column (ethyl acetate/hexane=1:2) to give the title compound (10.7 g). MS (ESI+) 649 (M++1, 40%).

The synthetic route of 53844-02-3 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Dainippon Sumitomo Pharma Co., Ltd.; EP2447264; (2012); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 143557-91-9, name is tert-Butyl 3-endo-3-hydroxy-8-azabicyclo[3.2.1]octane-8-carboxylate, A new synthetic method of this compound is introduced below., HPLC of Formula: C12H21NO3

To a suspension of 60% sodium hydride dispersion (0.270 g, 6.75 mmol) in 20 mL DMSO, (lR,3r,5S)-tert-butyl 3-hydroxy-8-azabicyclo[3.2.1]octane-8-carboxylate (1.0 g, 4.399 mmol) was added. After stirring at room temperature for 20 min, l-(benzyloxy)-4-fluorobenzene (0.89 g, 4.401 mmol) was added and mixture was stirred at 90C (oil bath). After 2.5 d, dark mixture was extracted with water and AcOEt (3x). Combined organic phases were dried over MgS04, filtered, and concentrated. Residue (ca. 3 g) was dissolved in 40 mL CH2C12 and triethylamine (1 mL, 7.175 mmol) and di-teri-butyl dicarbonate (0.961 g, 4.401 mmol) were added. After 10 min, mixture was transferred into a separatory funnel and extracted with water and CH2C12. Organic phases was dried over MgSO/t, filtered, and concentrated. Residue was purified by Biotage column chromatography (Si02, hexane/ AcOEt gradient) to give (lR,3r,55)-teri-butyl 3-(4-(benzyloxy)phenoxy)-8- azabicyclo[3.2.1]octane-8-carboxylate (0.34 g, 0.830 mmol, 18.9%) as a white solid. Exact mass calculated for C25H31F6N04: 409.23, found: LCMS m/z = 410.2 [M+H]+; lU NMR (400 MHz, CDC13) delta ppm 1.47 (s, 9H), 1.93-1.97 (m, 4H), 2.07-2.17 (m, 4H), 4.49-4.53 (m, 2H), 4.50-4.52 (m, 1H), 5.01 (s, 2H), 6.75-6.77 (m, 2H), 6.89-6.91 (m, 2H), 7.31-7.43 (m, 5H).

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; ARENA PHARMACEUTICALS, INC.; JONES, Robert M.; BUZARD, Daniel J.; HAN, Sangdon; KIM, Sun Hee; LEHMANN, Juerg; ZHU, Xiuwen; WO2013/55910; (2013); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Related Products of 885-70-1, 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. 885-70-1, name is 5,11-Dihydropyrido[2,3-b][1,4]benzodiazepin-6-one belongs to amides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Preparation 1 11-Acryloyl-5,11-dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and a mixture thereof with the corresponding 11-(3-chloro-propionyl) compound STR35 Solutions of 3-chloropropionyl chloride (6.3 g) in dioxane (60 ml) and triethylamine (8.4 g) in dioxane (60 ml) were added simultaneously to a refluxing suspension of 5,11-dihydro-6H-pyrido [2,3-b][1,4]benzodiazepin-6-one (9.45 g – see DT-PS 1179943) in dioxane (300 ml) and the mixture was heated under reflux for 6 hours and evaporated to give a mixture of the two title compounds in which the acryloyl compound predominated. Crude mixtures of the 11-acryloyl and 11-(3-chloropropionyl) compounds prepared using this procedure were used in Examples 22-30. The residue was purified by chromatography on silica using dichloromethane plus 0-2% methanol as eluant. Appropriate fractions were combined and evaporated to give the title 11-acryloyl compound as a colourless solid, 3.2 g, (27%) which was used directly in Examples 11-21.

The synthetic route of 5,11-Dihydropyrido[2,3-b][1,4]benzodiazepin-6-one has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Alker; David; Cross; Peter E.; US5418229; (1995); A;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 40724-47-8, name is 4-Bromomethylbenzenesulfonamide, A new synthetic method of this compound is introduced below., HPLC of Formula: C7H8BrNO2S

To a stirring solution of 5-(3-(difluoromethoxy)-2-hydroxy-4- methoxyphenyl)isobenzofuran-l(3H)-one (80 mg, 0.246 mmol) in acetonitrile (10 mL) was added potassium carbonate (102 mg, 0.738 mmol) and 4- (bromomethyl)benzenesulfonamide (124 mg, 0.496 mmol) and the resultant reaction mixture was heated to 70 ¡ãC for 16 h. The reaction mixture was cooled to RT, filtered through celite and the filtrate was concentrated under reduced pressure. The obtained residue was purified by column chromatography (silica gel, 0-70percent ethyl acetate in pet ether) to afford the title compound as a solid (40 mg, 33percent).UPLC-MS (M + l) : 492.08 ; UPLC-MS RT (min) : 2.3

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; LEO PHARMA A/S; NIELSEN, Simon Feldbaek; HORNEMAN, Anne Marie; LAU, Jesper Faergemann; LARSEN, Jens Christian H¡ãjland; WO2011/134468; (2011); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 456-64-4, name is 1,1,1-Trifluoro-N-phenylmethanesulfonamide, A new synthetic method of this compound is introduced below., SDS of cas: 456-64-4

The free phenolic hydroxy was then triflated to give 39.; Compound 39; To a solution of 38 (324 mg, 1.50 mmol) in CH2C12 (20 mL) at RT, PhNHTf (639 mg, 1.8 0 mmol) was added at once. NEt3 (417 uL, 3.0 mmol) was added dropwise over 5 min. The reaction mixture was stirred at RT for 10 hr. The solvents were removed in vacuo. The residue was purified by silica gel flash chromatography with 6:1 Hex/EtOAc to give the title compound (454 mg, 87%) . XH NMR (400 MHz, CDCI3) : 8, 2.68 (s, 3H) , 3.89 (m, 2H) , 4.70 (d, J = 17.4 Hz, 1H) , 5.20 (d, J = 10.4 Hz, 1H) , 6.03 (m, 1H) , 6.34 (s, 1H) , 7.36 (d, J= 9.2 Hz, 2H) , 7.47 (d, J = 9.2 Hz, 2H) . 13C NMR (100 MHz, CDCI3) : 8, 24.1, 31.3, 117.4, 117.9, 118.8, 120.7, 124.1, 130.8, 134.4, 144.6, 152.3,153.5, 158.8. IR umax(NaCl)/cm-1: 1727, 1428,1216, 1135, 965. MS (APCI+) calculated for C14H11F3O5S ml z 348.30, observed mlz 348.8.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; THE TRUSTEES OF COLLUMBIA UNIVERSITY IN THE CITY OF NEW YORK; WO2006/26368; (2006); A2;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 201162-53-0, name is 3-Boc-3,8-Diazabicyclo[3.2.1]octane, This compound has unique chemical properties. The synthetic route is as follows., category: amides-buliding-blocks

(1) Preparation of tert-butyl 8-ethyl-3,8-diazabicyclo[3.2.1]octan-3-carboxylate Tert-butyl 3,8-diazabicyclo[3.2.1]octan-3-carboxylate (212 mg, 1 mmol) was dissolved in acetonitrile (20 mL), and ethyl bromide (129.6 mg, 1.2 mmol) and potassium carbonate (414 mg, 3 mmol) were added under stirring. The mixture was stirred overnight at 40 C. After the raw material disappeared as detected by TLC, the mixture was filtrated under suction. The filtrate was distilled under reduced pressure to get the title compound (200 mg, yield: 83.3%).

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 201162-53-0.

Reference:
Patent; Xuanzhu Pharma Co., Ltd.; WU, Frank; CHEN, Bo; (105 pag.)EP3091008; (2016); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Synthetic Route of 104060-23-3,Some common heterocyclic compound, 104060-23-3, name is N-Boc-2-(4-Aminophenyl)ethanol, molecular formula is C13H19NO3, 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.

4-(tert-Butoxycarbonylamino)phenethyl 3-nitro-benzenesulfonate 4.25 g (42 mmole) triethylamine was added to 10 g (42 mmole) 2-[4-(tert-butoxycarbonylamino)phenyl]-1-ethanol dissolved in dichloromethane. The reaction mixture was cooled to -25 C. and 9.34 g (42 mmole) 3-nitrobenzenesulfonyl chloride was added in portions. The reaction mixture was poured on to icewater, the phases were separated and the organic phase was dried (sodium sulfate), filtered and the solvent was evaporated in vacuo. The residue was purified by chromatography on silica gel using dichloromethane as eluent to give 8.3 g (yield 47%) 4-(tert-butoxycarbonylamino)-phenethyl 3-nitro-benzenesulfonate as yellow crystals.

The synthetic route of 104060-23-3 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; AstraZeneca AB; US6288096; (2001); B1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics