Category: 35344-95-7

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 35344-95-7, Name is 1H-Pyrazole-4-carbaldehyde, formurla is C4H4N2O. In a document, author is Wang, Guangcheng, introducing its new discovery. SDS of cas: 35344-95-7.

A new series of pyrazole-naphthalene derivatives (5a-5q) have been synthesized and evaluated for their anticancer activity against human breast cancer cell lines (MCF-7). Most of newly synthesized compounds (except 5i, 5m, and 5p) exhibited potent antiproliferative activity in the range of IC50 = 2.78 +/- 0.24 mu M – 9.13 +/- 0.47 mu M. Among them, compound 5j (IC50 = 2.78 +/- 0.24 mu M), bearing ethoxy at the 4-position of the phenyl ring, was found to be the most active compound in this series of compounds, with five folds more active than the standard drug cisplatin (IC50 = 15.24 +/- 1.27 mu M). In addition, compound 5j and colchicine showed the same ability to inhibit tubulin polymerization with the IC50 values of 4.6 mu M and 6.7 mu M, respectively. Cellular mechanism studies elucidated that compound 5j arrested the cell cycle at G2/M phase and induced apoptosis. Furthermore, molecular docking analysis revealed that compound 5j formed stable interactions in the colchicine-binding site of tubulin.

I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 35344-95-7 help many people in the next few years. SDS of cas: 35344-95-7.

Reference:
Pyrazole – Wikipedia,
,Pyrazoles – 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. 35344-95-7, name is 1H-Pyrazole-4-carbaldehyde belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. category: pyrazoles-derivatives

To a stirred solution of pyrazole carboxaldehyde (2-1, 300 mg, 3.1 mmol) in tetrahydrofuran was sequentially added 3,4-dihydro-2H-pyran (2-2, 867 mg, 10.3 mmol) and catalytic amount of trifluoroacetic acid. The resulting solution was refluxed for 4 h and then cooled to rt. The reaction was quenched by addition of trace amount of sodium hydride. Solvent was removed under vacuum and the residue was purified by silica gel chromatography to give 2-3 (520 mg, 92percent). MS (ESI+): m/z: 181.1 (M+H)+.

The synthetic route of 35344-95-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; ANGION BIOMEDICA CORP.; LI, An-Hu; DANA, Dibyendu; LIM, Dong Sung; GADHIYA, Satishkumar; JUNG, Dawoon; NARAYAN, Prakash; ALI, Quaisar; PAKA, Latha; GOLDBERG, Itzhak D.; (93 pag.)WO2019/46795; (2019); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

35344-95-7, In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 35344-95-7 as follows.

1-(2-Hydroxyethyl)-1H-pyrazole-4-carbaldehyde In a 30-mL sealed tube, 1H-pyrazole-4-carbaldehyde (500 mg, 5.20 mmol, 1.00 equiv), potassium carbonate (1.08 mg, 7.80 mmol, 1.50 equiv) and 2-bromoethan-1-ol (775.3 mg, 6.20 mmol, 1.19 equiv) were mixed in CH3CN (10 mL) at room temperature. The reaction mixture was then irradiated with microwave for 40 min at 150° C. After the reaction was done, the reaction mixture was cooled to room temperature, filtered through a celite pad and the filtrate was concentrated under reduced pressure. The residue was purified in a silica gel column eluting with dichloromethane/methanol (1percent to 5percent gradient) to afford 1-(2-hydroxyethyl)-1H-pyrazole-4-carbaldehyde (650 mg, 89percent) as yellow solid. MS: m/z=140.8 [M+H]+

According to the analysis of related databases, 1H-Pyrazole-4-carbaldehyde, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Merck Patent GmbH; GAILLARD, Pascale; SEENISAMY, Jeyaprakashnarayanan; LIU-BUJALSKI, Lesley; CALDWELL, Richard D.; POTNICK, Justin; QIU, Hui; NEAGU, Constantin; JONES, Reinaldo; WON, Annie Cho; GOUTOPOULOS, Andreas; SHERER, Brian A.; JOHNSON, Theresa L.; GARDBERG, Anna; (234 pag.)US2016/96834; (2016); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

35344-95-7, name is 1H-Pyrazole-4-carbaldehyde, belongs to pyrazoles-derivatives 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: C4H4N2O

To a 50-mL round-bottom flask was placed a solution of [( 1 s,3s)-3-(3-pheny 1- 1 ,2-oxazole-5-amido)cyclobuty l]methy 1 4-methylbenzene- 1 -sulfonate ( 1 g, 2.34 mmol, 1.00 equiv) in DMF (15 mL) then Cs2C03 (1.5 g, 4.60 mmol, 2.00 equiv) and lH-pyrazole-4-carbaldehyde (338 mg, 3.52 mmol, 1.50 equiv) were added. The resulting solution was stirred for 3 h at 100°C then the solids were removed by filtration. The crude product was purified by Flash-Prep-HPLC (CombiFlash-1 : Column, C18 silica gel; mobile phase, X: H20 (0.5percent NFUHCC ), Y: ACN, X/Y=90/10 increasing to X/Y=5/95 within 40 min; Detector, UV 254 nm) affording 460 mg (56percent) of 3-phenyl-N-[(l s,3s)-3-[(4-formyl-lH- pyrazol-l-yl)methyl]cyclobutyl]-l,2-oxazole-5-carboxamide as a yellow solid. LCMS (ES, m/z): [M+H]+ = 351.1.

The synthetic route of 35344-95-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; PROTEOSTASIS THERAPEUTICS, INC.; BASTOS, Cecilia, M.; MUNOZ, Benito; TAIT, Bradley; (194 pag.)WO2016/105485; (2016); A2;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Application of 35344-95-7, 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. 35344-95-7, name is 1H-Pyrazole-4-carbaldehyde belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.

To a mixture of 4-fluorobenzonitrile (2.49 g, 20.6 mmol) and 4-formylpyrazole (1.98 g, 20.6 mmo) in 50 mL of DMF at 0 0C was added 95percent sodium hydride (0.54 g, 22.7 mmol) under nitrogen. The mixture was heated to 60 0C for 6 hours and cooled to room temperature, Water was added carefully and the mixture was then extracted with ethyl acetate. The combined extracts were washed with water and brine, and then dried over sodium sulfate, filtered, and concentrated in vacuo to provide crude 4~(4-formyMH-pyrazol-l-yl)benzonitrile.

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, 1H-Pyrazole-4-carbaldehyde, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; MERCK SHARP & DOHME CORP.; KUDUK, Scott, D.; DI MARCO, Christina, Ng; WO2010/19391; (2010); A1;,
Pyrazole – Wikipedia,
Pyrazoles – 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. 35344-95-7, name is 1H-Pyrazole-4-carbaldehyde, A new synthetic method of this compound is introduced below., Quality Control of 1H-Pyrazole-4-carbaldehyde

Example 12 Production of alpha-(4-pyrazolyl)-N-t-butylnitrone To a suspension of 1,1-dimethylnitroethane (546.0 mg, 5.29 mmol) and zinc (515.5 mg, 7.89 mmol) in ethanol (3.0 ml) was added acetic acid (950.0 mg, 15.8 mmol) dropwise at 5° C. while stirring. The mixture was stirred at room temperature for 45 minutes. After cooling the mixture to 5° C. again, pyrazole-4-carbaldehyde (255.4 mg, 2.66 mmol) was added dropwise to the mixture while stirring and stirred at room temperature overnight. Zinc acetate in the mixture was filtered off and the filtrate was concentrated and purified by silica gel chromatography (chloroform/methanol=10/1). Yield: 226.3 mg(51percent) 1H-NMR(CDCl3) 1.60(s, 9H), 6.56(d, 1H, J=2.0 Hz), 7.64(d, 1H, J=2.0 Hz), 7.71(s, 1H), 8.43(brs, 1H)

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; Sumitomo Pharmaceuticals Co., Ltd.; US6194461; (2001); B1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Electric Literature of 35344-95-7, These common heterocyclic compound, 35344-95-7, name is 1H-Pyrazole-4-carbaldehyde, 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.

A nucleophile (1 mmol)was added to a solution of compound 1 or 2 (1 mmol) in MeCN or EtOH(10 ml) and the mixture was stirred at room temperature for 30 min (foradducts with 1) or 2?24 h (for adducts with 2). The precipitated productwas filtered off, washed with the same solvent (5 ml) and dried in air to give beige or brown solid adduct.

Statistics shows that 1H-Pyrazole-4-carbaldehyde is playing an increasingly important role. we look forward to future research findings about 35344-95-7.

Reference:
Article; Starosotnikov, Alexey M.; Shkaev, Dmitry V.; Bastrakov, Maxim A.; Fedyanin, Ivan V.; Shevelev, Svyatoslav A.; Dalinger, Igor L.; Mendeleev Communications; vol. 28; 6; (2018); p. 638 – 640;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Reference of 35344-95-7, 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. 35344-95-7, name is 1H-Pyrazole-4-carbaldehyde, This compound has unique chemical properties. The synthetic route is as follows.

2-bromoethoxy- xit y Id i met y I si I ane (CAS [86864-60-0]) (2.4 mL; 1 1 .4 mmol ) was added to a solution of 1 H-pyrazo le-4-carbaldehyde (CAS [35344-95-7] ) (910 mg; 9.5 mmol ) and K2CO3 ( 1 .6 g; 1 1 .4 mmol) in ACN (18 mL ). The reaction was heated at 80C for 2h. The reaction mixture was partitioned between a saturated solution of NaHCO; and EtOAc. The organic layer was separated, dried over MgS04, filtered and evaporated till dryness. The residue was purified by chromatography ov er silica gel ( Stationary phase: irregular SiOH 40 iim 120g, mobile phase gradient from: 100% DCM, 0% MeOH to 95% DCM, 5% MeOH). The fractions containing product were collected and ev aporated to dryness yielding 1 .6 g (65%) of intermediate 12 .

The chemical industry reduces the impact on the environment during synthesis 1H-Pyrazole-4-carbaldehyde. I believe this compound will play a more active role in future production and life.

Reference:
Patent; JANSSEN PHARMACEUTICA NV; ANGIBAUD, Patrick, Rene; PANDE, Vineet; HERKERT, Barbara; KROSKY, Daniel, Jason; QUEROLLE, Olivier, Alexis, Georges; PATRICK, Aaron Nathaniel; (161 pag.)WO2018/50684; (2018); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Synthetic Route of 35344-95-7, A common heterocyclic compound, 35344-95-7, name is 1H-Pyrazole-4-carbaldehyde, molecular formula is C4H4N2O, 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.

To a solution of li/-pyrazole-4-carbaldehyde (300 mg, 3.12 mmol) was added ethyl 2-(triphenylphosphoranylidene)acetate (1360 mg, 3.90 mmol) in toluene (10 mL). The mixture was heated at 90 °C for 2 h. The solvent was removed in vacuo. The crude material was purified by flash chromatography to afford Example 7A (450 mg, 2.71 mmol, 87percent yield) as a white solid. LCMS (ES): m/z 167.1 [M+H]+.

The synthetic route of 35344-95-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; ZHAO, Guohua; DEVASTHALE, Pratik; YE, Xiang-Yang; SELVAKUMAR, Kumaravel; DHANUSU, Suresh; BALASUBRAMANIAN, Palanikumar; GUERNON, Leatte R.; CIVIELLO, Rita; HAN, Xiaojun; PARKER, Michael F.; JACUTIN-PORTE, Swanee E.; (290 pag.)WO2018/89353; (2018); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Electric Literature of 35344-95-7, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 35344-95-7 name is 1H-Pyrazole-4-carbaldehyde, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

To the stirred solution of lH-pyrazole~4~carbaldehyde 46-3 (461.54 mg, 4.80 mmol) and (l-benzy~4~ piperidyl) methanesulfonate 46-2 (1.2 g, 4.46 mmol) in DMF (20 mL) was added cesium carbonate (3.35 g, 10.28 mmol). Reaction mixture was heated at 80C for 16 hours and was then cooled to room temperature, diluted with ethyl acetate, washed with water and brine, dried over sodium sulfate and concentrated under reduced pressure. Crude material was purified by combiflash chromatography eluting at 0 1% methanol in dichlorometha e to afford l~(l-benzyl~4- piperidyl)pyrazole-4-carbaldehyde 46-4 (650 mg, 2.41 mmol, 70.42% yield) as brown gum. LC MS: ES+ 269 8.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1H-Pyrazole-4-carbaldehyde, and friends who are interested can also refer to it.

Reference:
Patent; C4 THERAPEUTICS, INC.; VEITS, Gesine, Kerstin; HE, Minsheng; HENDERSON, James, A.; NASVESCHUK, Christopher, G.; PHILLIPS, Andrew, J.; GOOD, Andrew, Charles; (471 pag.)WO2019/191112; (2019); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics