Tag: M.W=0-100

Electric Literature of 2469-99-0, The chemical industry reduces the impact on the environment during synthesis 2469-99-0, name is 3-Oxobutanenitrile, I believe this compound will play a more active role in future production and life.

General procedure: In a 250 mL RBF, 3-aminobut-2-enenitrile (2.0 g, 0.24 mole) was added to a stirred solution of cyclohexyl hydrazine hydrochloride (4.0 g, 0.026 mole) and acetic acid (0.1 mL) in ethanol (60 mL). The reaction was refluxed for 6 h. Crude was evaporated and loaded on column to elute out product at 40% ethyl acetate in hexane. (1.74 g, 40%)

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, 3-Oxobutanenitrile, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Sharma, Swagat; Kozek, Krystian A.; Abney, Kristopher K.; Kumar, Sushil; Gautam, Nagsen; Alnouti, Yazen; David Weaver; Hopkins, Corey R.; Bioorganic and Medicinal Chemistry Letters; vol. 29; 6; (2019); p. 791 – 796;,
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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. 2469-99-0, name is 3-Oxobutanenitrile, This compound has unique chemical properties. The synthetic route is as follows., Recommanded Product: 3-Oxobutanenitrile

Step 3. 2-Benzyl-3-oxobutanenitrile To a solution of Na (1.17 g, 50.87 mmol) in EtOH (20 mL) was added 3-oxobutanenitrile (2.5 g, 30.09 mmol) and (bromomethyl)benzene (5 g, 29.23 mmol), and the reaction mixture was stirred for 2 hours at 80 C. The resulting mixture was concentrated in vacuo, diluted with water (200 mL), adjusted to pH 6 with HCl (3N), extracted with ethyl acetate (3*100 mL), dried over anhydrous magnesium and concentrated in vacuo to provide a residue, which was purified via silica gel column chromatography with 1.25% to 5% ethyl acetate in petroleum ether to afford 2-benzyl-3-oxobutanenitrile as a brown solid (2 g, 39%). LC/MS (ES, m/z):[M+H]+ 174.1

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 2469-99-0.

Reference:
Patent; BIOENERGENIX; US2012/277224; (2012); A1;,
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Electric Literature of 151-18-8, 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. 151-18-8, name is 3-Aminopropanenitrile belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: In a schlenk-type flask, corresponding aliphatic amine (2 mmol) and intermediates Y-5 (0. 5 mmol) were dissolved in dry dioxane (5 mL), and then Pd2(dba)3 (0.05 mmol), XantPhos (0.05 mmol) and Cs2CO3 (7.5 mmol) were added. The mixture was refluxed to 105 C while stirring under nitrogen atmosphere. The reaction was followed by TLC until its completion. After cooling, the solvent was evaporated under reduce pressure. The residue was purified by flash column chromatography using ethyl acetate/petroleum ether as eluent to give target compounds Ia-Im and IIa-IIm (except Ii and Iii). For Ii and IIi, the Boc group was further removed using CF3COOH to provide the two compounds.

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

Reference:
Article; Yang, Jiapei; Chen, Wenmin; Kang, Dongwei; Lu, Xueyi; Li, Xiao; Liu, Zhaoqiang; Huang, Boshi; Daelemans, Dirk; Pannecouque, Christophe; De Clercq, Erik; Zhan, Peng; Liu, Xinyong; European Journal of Medicinal Chemistry; vol. 109; (2016); p. 294 – 304;,
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Related Products of 2469-99-0, The chemical industry reduces the impact on the environment during synthesis 2469-99-0, name is 3-Oxobutanenitrile, I believe this compound will play a more active role in future production and life.

General procedure: 3-Acetyl-2-aminothiophene Derivatives; General Procedure Carbonyl compound (0.025 mol) was added to freshly prepared cya-noacetone (0.03 mol) in either MeOH or EtOH (40 mL). Sublimed sul-fur S8 (0.03 mol) and piperidine (0.03 mol) were added and the mix-ture was stirred and heated to 55-65 C for 24 h. Ice was then addedand the formed precipitate was filtered under vacuum and washedwith water. The obtained solid was crystallised from a suitable sol-vent, with the exception of 4g and 4j, which were collected directlywithout further purification. 1-(2-Amino-5,6-dihydro-4H-cyclopenta[b]thiophen-3-yl)ethan-one (4a)Yield: 2.7 g (61%); brown solid; mp 230 C (toluene). 1H NMR (400 MHz, CDCl3): delta = 6.82 (s, 2 H), 2.92-2.87 (m, 2 H), 2.78-2.72 (m, 2 H), 2.44-2.38 (m, 2 H), 2.38 (s, 3 H).13C NMR (100 MHz, CDCl3): delta = 193.7, 168.6, 141.0, 121.3, 112.2,31.74, 29.1, 28.7, 27.3.HRMS (ESI): m/z calcd for [C9H11NOS + Na]+: 204.0454; found:204.0464.Anal. Calcd for C9H11NOS: C, 59.64; H, 6.12; N, 7.73; S, 17.69. Found: C,60.14; H, 6.10, N, 7.48; S, 17.25.

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, 3-Oxobutanenitrile, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Abdelwahab, Ahmed B.; Hanna, Atef G.; Kirsch, Gilbert; Synthesis; vol. 48; 17; (2016); p. 2881 – 2888;,
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Electric Literature of 151-18-8,Some common heterocyclic compound, 151-18-8, name is 3-Aminopropanenitrile, molecular formula is C3H6N2, 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 1-bromo-3-iodobenzene (4.0 g, 14.1 mmol) in DMSO (40 mL) were added 3-aminopropanenitrile (1.5 mL, 20 mmol) , cuprous iodide (2.8 g, 15 mmol) , cesium carbonate (7.0 g, 21.5 mmol) and N, N-dimethylglycine (1.5 g, 14 mmol) in turn. The mixture was stirred at 70 for 5 h and quenched with water (40 mL) . The resulting mixture was extracted with DCM (40 mL × 3) . The combined organic layers were dried over anhydrous Na2SO4and concentrated in vacuo. The residue was purified by silica gel column chromatography eluted withPE/EtOAc (v/v) 2/1 to give a light yellow oily product (3.0 g, 94) .[0990]MS (ESI, pos. ion) m/z: 225.0, 227.0 [M+1]+

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

Reference:
Patent; SUNSHINE LAKE PHARMA CO., LTD.; LIU, Bing; ZHANG, Yingjun; CHENG, Changchung; HUANG, Jiuzhong; BAI, Shun; REN, Xingye; LI, Zhi; ZHOU, Youbai; (368 pag.)WO2016/615; (2016); A1;,
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Adding a certain compound to certain chemical reactions, such as: 2469-99-0, name is 3-Oxobutanenitrile, belongs to nitriles-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 2469-99-0, Application In Synthesis of 3-Oxobutanenitrile

39 mg (0.3 mmol) of acetyl acetonitrile is added to 89 mg (0.3 mmol) of the third compound.Mix 5 mL of absolute ethanol for 3-5 minutes.Then add piperidine 5 muL,The temperature was raised to 78 C to carry out the reaction.TLC monitors the reaction until the third compound is completely reacted,The reaction is over,And add 20-30ml 10M HCl solution, heated for 30min,Adjust the pH to neutral with saturated sodium bicarbonate,Then extract with dichloromethane,Washed 4 times with saturated brine,Collect organic phase,And dried with anhydrous Na2SO4,Filter to obtain the filtrate,The solvent was distilled off under reduced pressure.Purification by column chromatography (V petroleum ether: V dichloromethane = 2:1) gave 79 mg of red powder, which is a phenothiazine coumarin dye 5B with a large Stokes shift, Mp of 141-143 C, yield 72%,

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, 3-Oxobutanenitrile, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Guangxi Normal College; Sheng Jiarong; Chen Wenqiang; Yue Xiuxiu; Huang Chusheng; (29 pag.)CN108250220; (2018); A;,
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Electric Literature of 630-18-2, 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. 630-18-2, name is Pivalonitrile belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Reference Example 20 (1Z)-N’-hydroxy-2,2-dimethylpropanimidamide; A mixture of trimethylacetonitrile (41.9 g, 504 mmol), 50% hydroxylamine solution (100 mL, 1512 mmol), and ethanol (200 mL) was heated under reflux for 16 hr. The reaction mixture was concentrated, toluene was added thereto, and the remaining water was removed by azeotropic distillation under reduced pressure. To the residue was added ethyl acetate, and the mixture was dried over anhydrous magnesium sulfate and filtered. The filtrate was concentrated. The residue was crystallized from ethyl acetate to give the title compound as colorless crystals (58.5 g, yield quaint.). 1H-NMR (300 MHz, CDCl3)delta:1.19 (s, 9 H), 4.60 (br. s., 2 H), 8.22 (br. s., 1 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, Pivalonitrile, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Takeda Pharmaceutical Company Limited; EP2399914; (2011); A1;,
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Electric Literature of 98730-77-9, These common heterocyclic compound, 98730-77-9, name is 1-(Hydroxymethyl)cyclopropanecarbonitrile, 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.

Thionyl chloride (0.13 mL) was added to a solution of 1-(hydroxymethyl)cyclopropanecarbonitrile (87 mg) in toluene (2.0 mL) at room temperature. The reaction mixture was stirred at 80C for 2 hr, and the solvent was evaporated. The resulting residue was dissolved in DMF (2.0 mL), and 2-(4-chlorophenyl)-5-(4-hydroxy-3-methoxyphenyl)furo[3,2-c]pyridin-4(5H)-one (110 mg) and potassium carbonate (165 mg) were added. The reaction mixture was stirred at 80C for 3 hr. To the reaction mixture was added saturated aqueous sodium hydrogen carbonate solution, and the mixture was extracted with ethyl acetate. The resulting organic layer was dried over magnesium sulfate and concentrated in vacuo. The resulting residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane) and recrystallized from ethanol/2-propanol to give the title compound (56.5 mg) as a pale yellow solid. 1H NMR (400 MHz, CHLOROFORM-d): delta 1.11-1.18 (2H, m), 1.35-1.44 (2H, m), 3.88 (3H, s), 4.07 (2H, s), 6.65 (1H, d, J = 7.4 Hz), 6.90 (1H, d, J = 8.4 Hz), 6.98 (1H, d, J = 1.8 Hz), 7.05 (1H, d, J = 8.3 Hz), 7.21-7.33 (2H, m), 7.42 (2H, d, J = 8.4 Hz), 7.71 (2H, d, J = 8.3 Hz). MS (ESI+) : [M+H]+ 447.1.

The synthetic route of 98730-77-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Takeda Pharmaceutical Company Limited; KASAI, Shizuo; IGAWA, Hideyuki; TAKAHASHI, Masashi; KINA, Asato; EP2848622; (2015); A1;,
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Synthetic Route of 98730-77-9, The chemical industry reduces the impact on the environment during synthesis 98730-77-9, name is 1-(Hydroxymethyl)cyclopropanecarbonitrile, I believe this compound will play a more active role in future production and life.

To a solution of 1-(hydroxymethyl)cyclopropanecarbonitrile (1.0 g) in dichloromethane (15 ml) was added pyridine (4.1 ml) at 0C, and the mixture was stirred at the same temperature for 15 min. To the obtained reaction mixture was added dropwise p- toluenesulfonyl chloride (3.9 g) , and the mixture was stirred at room temperature for 16 hr. The reaction mixture was concentrated under reduced pressure, water was added, and the mixture was extracted with dichloromethane. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give the title compound (1 g) . 1H NMR (400 MHz, CDCl3) delta 1.06 (2H, dd, J = 7.6, 5.7 Hz), 1.33- 1.37 (2H, m) , 2.45 (3H, s) , 3.98 (2H, s) , 7.36 (2H, d, J = 8.1 Hz) , 7.81 (2H, d, J = 8.2 Hz)

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, 1-(Hydroxymethyl)cyclopropanecarbonitrile, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; TAKEDA PHARMACEUTICAL COMPANY LIMITED; IGAWA, Hideyuki; TAKAHASHI, Masashi; KAKEGAWA, Keiko; IKOMA, Minoru; AIDA, Jumpei; WO2015/5489; (2015); A1;,
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Electric Literature of 4426-11-3, 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 4426-11-3 as follows.

Example 44B l-(l-(3-chlorophenyl)ethyl)cyclobutanecarbonitrile n-BuLi (4.7 mL, 11.8 mmol, 2.5 M in hexane) was added to a solution ofdiisopropylamine (1.13 g, 11.2 mmol) in THF (20 mL) at -78C. After stirring for 5 min, neat cyclobutancarbonitrile (0.8 g, 9.87 mmol) was added and the mixture was stirred at -78C for 1 hour. Then a solution of Example 44A (2.6 g, 11.8 mmol) in THF (10 mL) was added and the mixture was stirred at -78C for 1 h. The mixture was quenched with water and extracted with EtOAc (40 mL). The solvent was evaporated and the residue was used directly in the next step without further purification. LC-MS: m/z 220 (M+H).

According to the analysis of related databases, 4426-11-3, the application of this compound in the production field has become more and more popular.

Reference:
Patent; ABBOTT LABORATORIES; ABBOTT LABORATORIES TRADING (SHANGHAI) COMPANY, LTD; BAYBURT, Erol, K.; CLAPHAM, Bruce; COX, Phil, B.; DAANEN, Jerome, F.; GOMTSYAN, Arthur; KORT, Michael, E.; KYM, Philip, R.; VOIGHT, Eric, A.; WO2012/19315; (2012); A1;,
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