Tag: M.W=0-100

Electric Literature of 2002-24-6, 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 2002-24-6 as follows.

EXAMPLE 2 N-(3-{4-[3-Chloro-4-(3-fluoro-benzyloxy)-phenylamino]-quinazolin-6-yl}-prop-2-ynyl)-N’-cyano-N”-3-(2-hydroxy-ethyl)guanidine. A mixture of crude 1-(3-{4-[3-chloro-4-(3-fluoro-benzyloxy)-phenylamino]-quinazolin-6-yl}-prop-2-ynyl)-2-phenyl-N-cyano-isourea (70 mg, 0.12 mmol) (from Step H, Example 1), 2-hydroxyethylamine hydrochloride (39 mg, 0.4 mmol) and triethylamine (0.07 mL, 0.5 mmol) in isopropanol (2 mL) was heated to 85 C. in a sealed tube. The reaction was cooled to room temperature after 3 hours. Solvent was removed via rotovap. The residue was then purified by FCC to give the final productproduct (25 mg, 38%) as a light yellow solid. MS ESI (+) m/z 544 (M+1) detected; 1H NMR (400 MHz, deuterated DMSO) 9.95 (s, 1H), 8.7 (s, 1H), 8.6 (s, 1H), 8.05 (s,1H), 8.0 (s, 1H), 7.8 (m, 1H), 7.78 (m, 2H), 7.6 (br, 1H), 7.5 (m, 1H), 7.22-7.4 (m, 2H), 7.2 (m, 1H), 7.1 (m, 1H), 5.25 (s, 2H), 4.25 (m, 2H), 3.5 (m, 2H), 3.25 (m, 2H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,2002-24-6, its application will become more common.

Reference:
Patent; Wallace, Eli; Topolov, George; Zhao, Qian; Lyssikatos, Joseph P.; US2005/101617; (2005); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Electric Literature of 616-29-5, 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. 616-29-5, name is 1,3-Diaminopropan-2-ol. A new synthetic method of this compound is introduced below.

Example 2 To 13.5 g (0.15 mol) of 1,3-diaminopropan-2-ol and 14.4 g (0.36mol) of NaOH in 400 ml THF and 200 ml H2O at 0 C. was added 72 g (0.33 mol) of Boc2O in portions. The reaction mixture was warmed up to RT and stirred overnight. To this mixture was added 300 ml of EtOAc. The layers were separated and the aqueous layer was extracted with 200 ml EtOAc. The combined organic layer was dried with MgSO4 and concentrated to give di-tert-butyl 2-hydroxypropane-1,3-diyldicarbamate in quantitative yield.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,616-29-5, 1,3-Diaminopropan-2-ol, and friends who are interested can also refer to it.

Reference:
Patent; Morgan, Bradley P.; Muci, Alex; Kraynack, Erica; Lu, Pu-Ping; Tochimoto, Todd; Morgans, David J.; US2007/66626; (2007); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Reference of 2002-24-6, Adding some certain compound to certain chemical reactions, such as: 2002-24-6, name is 2-Aminoethanol hydrochloride,molecular formula is C2H8ClNO, 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 2002-24-6.

1-Nitro-9-Hydroxyethylaminoacridine This compound is synthesised generally using the methods described in EP 38579. Specifically, 2 g of 2-amino-ethanol hydrochloride is added to 6.4 g of 1-nitro-9-phenoxyacridine dissolved in 20 g of freshly distilled phenol. The mixture is heated for 40 minutes at a temperature of 80 C. and then cooled, diluted with ether. It is then poured into dry ether that was acidified with an ethereal solution of hydrogen chloride. The orange colored precipitate of 1-nitro-9-(2-hydroxyethylamino)-acridine hydrochloride, obtained in this way is filtered and crystallized from dry ethanol. The melting point of the compounds obtained was 170 C., with decomposition. Yield 91%. Elementary analysis for the formula: C15H14N3O3Cl:calculated:56.47%; C, 4.42%; H, 13.17%; N. determined: 56.44%; C, 4.40%; H, 13.03%; N.

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. 2002-24-6, 2-Aminoethanol hydrochloride, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Tiwari, Raj; Miller, Daniel G.; Konopa, Jerzy Kazimierz; Wysocka-Skrzela, Barbara; US2002/37831; (2002); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Synthetic Route of 56-81-5, Adding some certain compound to certain chemical reactions, such as: 56-81-5, name is Propane-1,2,3-triol,molecular formula is C3H8O3, 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 56-81-5.

General procedure: In(OTf)3 (5.6 mg, 10 mumol, 1 mol %) was added to a mixture of cyclohexanone dimethylacetal (144 mg, 1.00 mmol) and finely ground 2,2-dimethyl-1,3-propanediol (111 mg, 1.10 mmol) and the reaction mixture stirred at room temperature for 30 min. At this time, residual MeOH was removed under reduced pressure and the crude residue passed through a short plug of basic alumina, which was washed with hexane (2×2 mL). The solvent was removed under reduced pressure to give the product, as a colourless oil (170 mg, 92%).

According to the analysis of related databases, 56-81-5, the application of this compound in the production field has become more and more popular.

Reference:
Article; Smith, Brendan M.; Kubczyk, Tomasz M.; Graham, Andrew E.; Tetrahedron; vol. 68; 38; (2012); p. 7775 – 7781;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Adding a certain compound to certain chemical reactions, such as: 2566-44-1, 2-Cyclopropylethanol, 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, 2566-44-1, blongs to alcohols-buliding-blocks compound. SDS of cas: 2566-44-1

Reference Example 11-1 4-(2-Cyclopropylethoxy)benzaldehyde To a mixture of 4-hydroxybenzaldehyde (2.84 g), 2-cyclopropylethanol (2.00 g), triphenylphosphine (6.09 g) and tetrahydrofuran (100 mL), diethyl azodicarboxylate (2.2 mol/L, solution in toluene, 10.5 mL) was added and the mixture was stirred at room temperature for 4 days. After concentrating the reaction mixture under reduced pressure, ethyl acetate (7.50 mL) and n-hexane (143 mL) were added and the mixture was stirred at room temperature for 15 minutes. The precipitate was removed by filtration through Celite (registered trademark). The filtrate was concentrated under reduced pressure and, thereafter, the resulting residue was purified by silica gel column chromatography (n-hexane:ethyl acetate = 95:5-50:50) to give the titled compound as a yellow oil (3.34 g). 1H NMR (300 MHz, CHLOROFORM-d) delta ppm 0.10 – 0.18 (m, 2 H) 0.46 – 0.55 (m, 2 H) 0.78 – 0.95 (m, 1 H) 1.67 – 1.76 (m, 2 H) 4.12 (t, J=6.6 Hz, 2 H) 6.97 – 7.05 (m, 2 H) 7.80-7.87 (m, 2 H) 9.88 (s, 1 H). MS ESI posi: 191[M+H]+.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,2566-44-1, its application will become more common.

Reference:
Patent; Taisho Pharmaceutical Co., Ltd.; TAKAYAMA, Tetsuo; SHIBATA, Tsuyoshi; SHIOZAWA, Fumiyasu; KAWABE, Kenichi; SHIMIZU, Yuki; HAMADA, Makoto; HIRATATE, Akira; TAKAHASHI, Masato; USHIYAMA, Fumihito; OI, Takahiro; SHIRASAKI, Yoshihisa; MATSUDA, Daisuke; KOIZUMI, Chie; KATO, Sota; EP2881384; (2015); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Reference of 4640-44-2, 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. 4640-44-2, name is 3-Aminocyclobutanol, molecular formula is C4H9NO, The 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.

Step 2: 3-Bromo-N-(3-hydroxycyclobutyl)-4-methylbenzenesulfonamide (2875) To a stirring solution of 3-aminocyclobutanol (480 mg, 3.88 mmol) in DMF (24.300 ml), under N2, was added 3-bromo-4-methylbenzene-1-sulfonyl chloride (1047 mg, 3.88 mmol) and DIPEA (1.492 ml, 8.55 mmol). The reaction mixture was stirred for 24 hours at room temperature. The mixture was concentrated under reduced pressure and added to 0.1 M HCI (150ml) and product extracted into EtOAc (200ml). The organic extract was washed with sat. Na2C03 (150ml), brine, dried over MgS04 and concentrated under reduced pressure to afford the title compound as a mixture of stereoisomers; (2876) LCMS: Rt 0.93, 0.95 mins; MS m/z 320.2 [M+H]+; Method 2minLowpHv01 (2877)

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 4640-44-2, 3-Aminocyclobutanol.

Reference:
Patent; NOVARTIS AG; BELLENIE, Benjamin Richard; BLOOMFIELD, Graham Charles; BRUCE, Ian; CULSHAW, Andrew James; HALL, Edward Charles; HOLLINGWORTH, Gregory; NEEF, James; SPENDIFF, Matthew; WATSON, Simon James; WO2015/162456; (2015); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Related Products of 616-29-5, Adding some certain compound to certain chemical reactions, such as: 616-29-5, name is 1,3-Diaminopropan-2-ol,molecular formula is C3H10N2O, 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 616-29-5.

VII. 1 (3-tert-Butoxycarbonylamino-2-hydroxy-propyl)-carbamic acid tert-butyl esterDi-tert-butyl dicarbonate (41 .5g) was dissolved in dichloromethane (40.0 ml), a solution of 1 ,3- diamino-propan-2-ol (8.0g) and triethylamine (1 .5 ml) indichloromethane/methanol (1 :5; 100 ml) was added and the reaction mixture was stirred at room temperature overnight. The solution was concentrated in vacuo and the residue was dissolved in dichlormethane. The organic layer was washed with water, separated, dried and concentrated in vacuo. The residue was purfied by chromatography (silica / dichloromethane: methanol 25:1 ).Yield: 17 gESI mass spectrum: m/z = 291 (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. 616-29-5, 1,3-Diaminopropan-2-ol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GMBH; HECKEL, Armin; HIMMELSBACH, Frank; KLEY, Joerg; LEHMANN-LINTZ, Thorsten; REDEMANN, Norbert; SAUER, Achim; THOMAS, Leo; WIEDENMAYER, Dieter; BLACK, Phillip; BLACKABY, Wesley; LINNEY, Ian; AUSTEN, Matthias; DANILEWICZ, John; SCHNEIDER, Martin; SCHREITER, Kay; WO2011/104340; (2011); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Synthetic Route of 2516-33-8 ,Some common heterocyclic compound, 2516-33-8, molecular formula is C4H8O, 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 stirring solution/suspension comprised of N-hydroxyphthalimide (Aldrich, 57.15 g, 339.8 mmol), cyclopropanemethanol (Aldrich, 25.10 g, 341.1 mmol), and triphenylphosphine (“DEAD,” Aldrich, 91.0 g, 344 mmol) in 1.00 L of tetrahydrofuran under a nitrogen atmosphere and cooled to 6 C. (internal mixture temperature) with an ice-water bath was added diethyl azodicarboxylate (Aldrich, 56 ml, 356 mmol) dropwise over 20 minutes via addition funnel. The reaction mixture temperature was kept below 20 C. during the addition. Following addition of the DEAD, the cold bath was removed and the reaction mixture was stirred for 15 hours. The mixture was concentrated to a paste under reduced pressure. Chloroform (ca. 300 ml) was added and the mixture swirled to loosen all solids. Vacuum filtration removed the insolubles. The filtrate was likewise filtered to remove white precipitate that formed and to give a clear filtrate. Concentration under reduced pressure afforded a clear oil. Flash filtration through silica gel (100% chloroform) gave filtrates containing unseparated product. These filtrates were combined and concentrated under reduced pressure to afford 127.4 g of a clear oil. The oil was dissolved in absolute ethanol (400 ml) and the solution was refrigerated for two hours. A white crystalline solid had precipitated and was subsequently collected by vacuum filtration. The product was dried in the vacuum oven (60 C.) to afford 42.66 g (58%) of the desired material; m.p. 71-77 C.; 1H-NMR (400 MHz; CDCl3 signal offset to delta 6.96) delta 7.54-7.43 (m, 4H), 3.74 (d, 2H, J=7.6 Hz), 1.02-0.95 (m, 1H), 0.34-0.30 (m, 1H), 0.04-0.00 (m, 1H).

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. 2516-33-8, Cyclopropylmethanol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Warner-Lambert Company; US7030119; (2006); B1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Related Products of 96-35-5, 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. 96-35-5, name is Methyl 2-hydroxyacetate, molecular formula is C3H6O3, The 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.

General procedure: Intermediate D15-2-hydroxyacetohydrazide A mixture of methyl 2-hydroxyacetate (9g, 0.1mol, 1equiv) and hydrazine hydrate (9.6ml, 1.5equiv, 85%) in methanol (100ml) was refluxed for 8h before methanol and exceesive hydrazine hydrate were evaporated. Toluene was added and evaporated again to remove the residual water to give the title compound as a white solid which could be used in next step without further purification.

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 96-35-5, Methyl 2-hydroxyacetate.

Reference:
Patent; Shanghai Institute of Materia Medica, Chinese Academy of Sciences; SHEN, Jianhua; WANG, Yiping; WANG, Kai; EP2725024; (2014); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Related Products of 3513-81-3, Adding some certain compound to certain chemical reactions, such as: 3513-81-3, name is 2-Methylenepropane-1,3-diol,molecular formula is C4H8O2, 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 3513-81-3.

To a solution of 2-methylene-1, 3-propane diol (5.28g, 0.06 mmol) and di-tert-butyl dicarbonate (35 g, 0.16 mol) in 150 ml of dichloromethane was added 6N NaOH (70 ml) and tetrabutylammoniahydrogensulfate (3.4 g, 10 mmol). The mixture was stirred at room temperature overnight. The organic layer was separated, washed with NaHC03 (200 mi x 3) and brine (200 ml), dried over anhydrous MgS04, concentrated and dried over vacuum to give the title compound. ‘H NMR (CDC13) : 5 5.20 (s, 2H); 4.44 (s, 4H); 1. 18 (s, 18H). 13c NMR (CDC13) : No. 153.3, 138.5, 117.3, 82.3, 66.9, 27.8.

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. 3513-81-3, 2-Methylenepropane-1,3-diol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; ENANTA PHARMACEUTICALS, INC.; WO2005/61526; (2005); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts