Category: amides-buliding-blocks

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. 5511-18-2, name is Adamantane-1-carboxamide, A new synthetic method of this compound is introduced below., category: amides-buliding-blocks

To a solution of admantane-1 -carboxamide (2 g, 11.17 mmol) in THF (50 mL) was added BH3. Me2S (10.2 M, 3.4 mL, 34.7 mmol) under nitrogen. The mixture was heated at reflux overnight. The solution was cooled to rt. Methanol (20 mL) was added to the solution. The mixture was concentrated under vacuum to give crude product, which was purified by chromatography on silica gel to afford (i-adamantyl)methylamine (1.09 g, 59 %). 1H NMR (CDCI3, 400 MHZ): delta=1.44-1.96 (m, 15H), 2.30 (s, 2H).

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; VITAE PHARMACEUTICALS, INC.; WO2008/106128; (2008); A2;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

77925-80-5, name is N-(Benzyloxy)-2-nitrobenzenesulfonamide, 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. HPLC of Formula: C13H12N2O5S

To a solution of N-(benzyloxy)-2-nitrobenzenesulfonamide (212 g, 0.69 mol) in THF (1000 mL) was added (2S,5S)-1-tert-butyl 2-ethyl 5-hydroxypiperidine-1,2-dicarboxylate (171 g, 0.63 mol) and PPh3 (275 g, 1.05 mol), followed by dropwise addition of a solution of DEAD (195 g, 1.12 mol) in THF (500 mL). The mixture was then stirred at 20 C. overnight. The reaction mixture was then concentrated in vacuum and purified by silica gel column chromatography (3:1 petroleum ether/EtOAc) to afford (2S,5R)-1-tert-butyl 2-ethyl 5-(N-(benzyloxy)-2-nitrophenylsulfonamido)piperidine-1,2-dicarboxylate (283.8 g, 80%) as a yellow oil

The synthetic route of 77925-80-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Hwang, You Seok; Gu, Jian-Qiao; Jain, Akash; Garad, Sudhakar; Sizemore, Jacob P.; US2014/275001; (2014); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

39549-79-6, name is 2-Amino-4-methylbenzamide, 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. Quality Control of 2-Amino-4-methylbenzamide

Step A:To a solution of 2-amino-4-methylbenzamide (3 g, 20.0 mmol) in THF (40 mL) was added 5-(4-fluorophenyl)-1,3-dioxolane-2,4-dione from Example 16 (4.7 g, 24 mmol) and the solution was stirred for 2 hrs at 50¡ã C. Sodium methoxide in MeOH (25percent, 5.2 mL, 24 mmol) was then added and the solution was stirred at 50¡ã C. overnight.The reaction mixture solution was concentrated, 2N HCl was added and the mixture was filtered.The collected solid was dried to give 2-((4-fluorophenyl)(hydroxy)methyl)-7-methylquinazolin-4-ol (5.14 g, 91percent) which was used without further purification. LC-MS (ESI) m/z 285 (M+H)+.

The synthetic route of 39549-79-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; AMBIT BIOSCIENCES CORP.; US2012/53176; (2012); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Synthetic Route of 1118-92-9, The chemical industry reduces the impact on the environment during synthesis 1118-92-9, name is N,N-Dimethyloctanamide, I believe this compound will play a more active role in future production and life.

Example 2; 1-octanol was produced from N,N-dimethyloctanamide according to the following equation.[0084] [Chem. 13] [0085] 0.01 mmol of the complex 1 produced in Example 1 was placed in a 50 mL-autoclave equipped with a stirrer, and the autoclave was purged with nitrogen. 300 microliters of methanol, 1 mmol of N,N-dimethyloctanamide, and 500 microliters of methanol solution of 2.0 M sodium methoxide were added to the autoclave, and the autoclave was purged with hydrogen. The resulting mixture was stirred under hydrogen atmosphere (5 MPa) and 100 degrees C for 16 hours to obtain a reaction solution. The reaction solution was analyzed by gas chromatography, and as a result, it was confirmed that the GC area percentage of the amide as a raw material was 2% and the GC area percentage of 1-octanol was 92%.

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, N,N-Dimethyloctanamide, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; TAKASAGO INTERNATIONAL CORPORATION; OGATA, Osamu; KURIYAMA, Wataru; MATSUMOTO, Takaji; WO2012/39098; (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. 24310-36-9, name is 1-(Toluene-4-sulfonyl)-1,2,3,4-tetrahydrobenzo[b]azepin-5-one, A new synthetic method of this compound is introduced below., Quality Control of 1-(Toluene-4-sulfonyl)-1,2,3,4-tetrahydrobenzo[b]azepin-5-one

A solution of Br2 (558 mg, 3.48 mmol) in DCM (10 mL) was added dropwise to compound from Example 1 step 1 (1.00 g, 3.17 mmol), NBS (57 mg, 0.32 mmol), Et3N (352 mg, 3.48 mmol) in DCM (50 mL) at rt. The mixture was stirred at 50oC for 5 hrs and then quenched with water, extracted with DCM. The organic layer was washed with NaHCO3 (aq), concentrated and purified by silica gel column chromatography to give the desired compound (1.2 g, 96%) as brown solid. ESI MS m/z = 394.15 [M+1].

The synthetic route of 24310-36-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; ENANTA PHARMACEUTICALS, INC.; YU, Jianming; SHOOK, Brian, C.; BLAISDELL, Thomas, P.; KIM, In, Jong; PANARESE, Joseph; MCGRATH, Kevin; NEGRETTI-ENMANUELLI, Solymar; OR, Yat, Sun; (301 pag.)WO2017/123884; (2017); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Synthetic Route of 138-41-0,Some common heterocyclic compound, 138-41-0, name is Carzenide, 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.

To a suspension of 4-(aminosulfonyl)benzoic acid (500 mg, 2.5 mmol) in MeOH (2 ml) at O0C is added thionylchloride (0.2 ml, 7.4 mmol). The reaction mixture is stirred at rt overnight. When TLC confirms the total consumption of the starting acid, the solvent and excess thionyl chloride are removed under reduced pressure to afford 400 mg (75 %) of the title compound, which was used in the next step without any further purification. LC/MS: (ES+):215.9, (ES-):214.1.

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

Reference:
Patent; APPLIED RESEARCH SYSTEMS ARS HOLDING N.V.; WO2007/23186; (2007); 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. 144-80-9, name is N-((4-Aminophenyl)sulfonyl)acetamide belongs to amides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Product Details of 144-80-9

2 mmol compound 1a or 1b and 0.194 g (2 mmol) potassiumthiocyanate in about 25 mL acetone were refluxed for 30 min. Theresulting solid (KCl) was removed by filtration. Then to this solutioncorresponding sulfonamides (2 mmol) in about 10 mL acetone wasadded dropwise, the mixture was stirred under reflux for 2 h. The resulting solution was evaporated under reduced pressure. Then,the residue was treated with the water to give crude product as awhite solid. The resulting crude product was stirred with diethyletherat room temperature for 1 h and then filtered. After theseexperimental procedures, the white colored substance was obtainedas pure.

The synthetic route of 144-80-9 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Koca, ?rfan; Yi?itcan, Serhat; Guemue?, Mehmet; Goekce, Halil; Sert, Yusuf; Journal of Molecular Structure; vol. 1204; (2020);,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Synthetic Route of 39549-79-6, 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. 39549-79-6, name is 2-Amino-4-methylbenzamide belongs to amides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: A 15 mL tube was added 2-aminobenzamide (1 mmol), benzyl amine (1.5 mmol), and a stir bar. Then H2O2 (30 wtpercent in H2O, 5 equiv.) was added by a syringe at room temperature under open air. The tube was closed and kept at 120¡ãC for 20 h. The conversion and yield were determined by GC and GC?MS using hexadecane (0.1 mmol) as the internal standard.

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, 2-Amino-4-methylbenzamide, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Qi, Xin-Xin; Song, Zhen-Zhen; Gong, Jin-Long; Fang, Zheng-Yu; Wu, Xiao-Feng; Chinese Chemical Letters; vol. 27; 1; (2016); p. 21 – 24;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Synthetic Route of 618446-06-3, The chemical industry reduces the impact on the environment during synthesis 618446-06-3, name is 7-Amino-4,4-dimethyl-3,4-dihydro-1,8-naphthyridin-2(1H)-one, I believe this compound will play a more active role in future production and life.

7-Fluoro-4,4-dimethyI-3,4-dihydro-lH-[l,8]naphthyridin-2-one; 7-Fluoro-4,4-dimethyl-3,4-dihydro-lH-[l,8]naphthyridin-2-one, was produced as follows: HF-pyridine (100 mL) was cooled to -42 0C in a 1000 mL HDPE bottle using an CH3CN dry ice bath. While stirring vigorously, 7-amino-4,4-dimethyl-3,4- dihydro-lH-[l,8]naphthyridin-2-one (24.6 g, 0.129 mol) was added portionwise to control the exotherm. After the addition, NaNO2 (8.9 g, 0.1291 mol) was added portionwise. Significant exotherms were observed for both additions. The reaction mixture was then allowed to warm to 0 0C and stir for 2 h. The reaction mixture was quenched into a 4 L high density polyethylene (HDPE) bottle full of ice. The aqueous slurry was then neutralized using 2 N KOH. The resulting aqueous solution was extracted 3 times with CH2Cl2. The organic layers were dried over Na2SO4, filtered and concentrated to dryness. Excess pyridine was azeotroped with heptane. The product was dried under vacuum (2 mm Hg) for 3 h. The resulting product, 7-fluoro-4,4- dimethyl-3,4-dihydro-lH-[l,8]naphthyridin-2-one, was in the form of a white powder (23.06 g, 0.119 mol, 92%). MS: APCI: M+l: 195.1 (Exact Mass: 194.09).

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, 7-Amino-4,4-dimethyl-3,4-dihydro-1,8-naphthyridin-2(1H)-one, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; WARNER-LAMBERT COMPANY LLC; WO2006/90272; (2006); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Synthetic Route of 1015-89-0, A common heterocyclic compound, 1015-89-0, name is Phenanthridin-6(5H)-one, molecular formula is C13H9NO, 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.

EXAMPLE 28 STR46 To a mixture of phenanthridone 32 and PCl5 is added a molar excess of POCl3. The reaction is heated to reflux until chromatographic analysis indicates complete reaction, cooled and quenched by pouring onto ice. The aqueous layer is extracted with CHCl3. The organic layer is dried over MgSO4, filtered and evaporated to provide phenanthridine 33.

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; Merck & Co., Inc.; US5336674; (1994); A;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics