Author: tianli

Application of 13674-16-3, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 13674-16-3, name is Methyl 2-hydroxy-3-phenylpropanoate. This compound has unique chemical properties. The synthetic route is as follows.

[0177] Example 18: Synthesis of 2-(4 -AMINO-BIPHENYL-4-YLOXY)-3-PHENYL-PROPIONIC acid methyl ester.; [0178] Step 1: 2- (4 -NITRO-BIPHENYL-4-YLOXY)-3-PHENYL-PROPIONIC acid methyl ester. A mixture OF 4 -HYDROXY-4-NITRO-BIPHENYL (4.12 g, 19.1 mmol), prepared in step 2 of Example 16, 2-hydroxy-3-phenyl-propionic acid methyl ester (3.35 g, 18. 5 mmol) and triphenylphosphine (4.12 g, 19.1 MMOL.) in diethyl ether was cooled under nitrogen to 0C. Diisopropyl azodicarboxylate (6.09 mL, 30.96 mmol) was then added and the reaction allowed to come to room temperature and then stirred overnight at room temperature. The reaction was concentrated under reduced pressure. Purification of the residue on silica gel using 15% ethyl acetate hexanes as the eluent gave 2- (4 -NITRO-BIPHENYL-4-YLOXY)-3-PHENYL-PROPIONIC acid methyl ester.

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 13674-16-3, Methyl 2-hydroxy-3-phenylpropanoate.

Reference:
Patent; WYETH; WO2005/30702; (2005); A1;,
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Electric Literature of 23147-58-2, Adding some certain compound to certain chemical reactions, such as: 23147-58-2, name is Glycerol aldehyde dimer,molecular formula is C4H8O4, 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 23147-58-2.

A solution of 5-methoxy-l-indanone (500 mg, 3.08 mmol) in methanol (10 mL) was treated with 10% palladium on carbon (53 mg) followed by glycoaldehyde dimer (370 mg, 3.08 mmol) and 0.5M sodium methoxide in methanol (1.3 mL, 0.65 mmol). The mixture was placed under a hydrogen atmosphere (balloon) and stirred vigorously at room temperature for 65 hours. After purging with nitrogen, the mixture was filtered through a 0.45 mum Acrodisc and the disk was rinsed with methanol (2 mL). The filtrate was diluted with EtOAc (25 mL), washed with 0. IN HCl (15 mL) and brine (15 mL), dried over MgSOphi filtered, and evaporated under vacuum to a solid. LC-MS of this material showed a mixture of starting material (major) and product. The mixture was purified by chromatography on a Biotage Flash 12M KP-SiI column (12 mm x 15 cm). The column was eluted with 3:2 EtOAc-hexanes, collecting 6 mL fractions every 30 sec. EPO Fractions 20-36 were concentrated under vacuum and flashed with benzene to afford 2-(2-hydroxyethyl)- 5-methoxy-l-indanone as an oil. 1H NMR (CDCl3, 500 MHz) delta 1.80 and 2.05 (two m, CH2CH2OH), 2.79 and 3.35 (two dd, 3-CH2), 2.83 (m, H-2), 3.77-3.90 (m, CH2CH2OH), 3.87 (s, OCHj), 6.86 (d, H-4), 6.89 (dd, H-6), and 7.67 (d, H- 7).

According to the analysis of related databases, 23147-58-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; MERCK & CO., INC.; WO2006/50399; (2006); A2;,
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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. 24034-73-9, name is (2E,6E,10E)-3,7,11,15-Tetramethylhexadeca-2,6,10,14-tetraen-1-ol. A new synthetic method of this compound is introduced below., Safety of (2E,6E,10E)-3,7,11,15-Tetramethylhexadeca-2,6,10,14-tetraen-1-ol

To a solution of polymer bound triphenylphosphine (68 mg, 0.20 mmol, 3.0 mmol/g substitution) and carbon tetrabromide (68 mg, 0.20 mmol) in dry CH2Cl2 was added geranylgeraniol (56 muL, 0.17 mmol), and the reaction was stirred for 2 h. The polymeric reagent was removed by filtration and the solvents removed in vacuo. This crude product is stable overnight in the freezer, but was generally used directly in the Zn2+ catalyzed geranylgeranylation reactions after purification on a C18 SepPak column. The SepPak purification removes an unknown impurity that greatly increases the amount of undesirable disulfide peptide dimer formed instead of the desired geranylgeranylation of cysteine.

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it, 24034-73-9, (2E,6E,10E)-3,7,11,15-Tetramethylhexadeca-2,6,10,14-tetraen-1-ol.

Reference:
Article; Ochocki, Joshua D.; Mullen, Daniel G.; Wattenberg, Elizabeth V.; Distefano, Mark D.; Bioorganic and Medicinal Chemistry Letters; vol. 21; 17; (2011); p. 4998 – 5001;,
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Reference of 56239-26-0, 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. 56239-26-0, name is cis-4-Aminocyclohexanol hydrochloride, molecular formula is C6H14ClNO, 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.

To tert-butyl 3-(5-chloro-2-fluoropyridin-4-yl)phenyl((tetrahydro-2H-pyran-4- yl)methyl)carbamate (440 mg, 1.045 mmol) was added DMSO (4 ml), TEA (0.729 ml, 5.23 mmol), and (ls,4s)-4-aminocyclohexanol hydrochloride (476 mg, 3.14 mmol) . The reaction was stirred at 95-100 °C for 40 hr. The reaction was followed by LCMS. The reaction was let cool, added 250 ml of ethyl acetate, washed with saturated sodium bicarbonate, water (2x), filtered and concentrated to constant mass. The crude was purified by silica gel chromatography using 12g column eluting with 30-85percent ethyl acetate with heptane. The desired fractions were concentrated to constant mass, giving 363 mg of the titled compound as free base used without further purification. LCMS (m/z): 516.2 (MH+), rt = 0.80 min.

According to the analysis of related databases, 56239-26-0, the application of this compound in the production field has become more and more popular.

Reference:
Patent; NOVARTIS AG; ANTONIOS-MCCREA, William R.; BARSANTI, Paul A.; HU, Cheng; JIN, Xianming; MARTIN, Eric J.; PAN, Yue; PFISTER, Keith B.; SENDZIK, Martin; SUTTON, James; WAN, Lifeng; WO2012/66065; (2012); A1;,
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Reference of 1124-63-6, 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. 1124-63-6, name is 3-Cyclohexylpropan-1-ol. A new synthetic method of this compound is introduced below.

(9-1) Synthesis of 3-bromopropylcyclohexane (compound 9-1) [Show Image] 3-Cyclohexyl-1-propanol (5.00 g) was dissolved in methylene chloride (50 ml), triphenylphosphine (10.2 g) and N-bromosuccinimide (6.90 g) were added under ice-cooling, and the mixture was stirred under ice-cooling for 1 hr, and further at room temperature for 1 hr. The reaction mixture was washed with water and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. Diethyl ether (100 ml) was added, and the precipitated triphenylphosphine oxide was filtered off. The concentrate of the filtrate was purified by silica gel column chromatography (hexane alone) to give the object product (7.17 g) as a colorless oil. 1H-NMR(CDCl3) delta (ppm): 0.81-0.96(2H, m), 1.10-1.45(6H, m), 1.60-1.78(5H, m), 1.82-1.92(2H, quint, J=7.0Hz), 3.39(2H, t, J=7.0Hz).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,1124-63-6, 3-Cyclohexylpropan-1-ol, and friends who are interested can also refer to it.

Reference:
Patent; Mitsubishi Tanabe Pharma Corporation; EP2168944; (2010); A1;,
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Application of 928-51-8, Adding some certain compound to certain chemical reactions, such as: 928-51-8, name is 4-Chlorobutan-1-ol,molecular formula is C4H9ClO, 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 928-51-8.

Example 6 Synthesis of 4-(nitrooxy)butyl 4-phenyl-4-(2,4,5-trimethyl-3,6-dioxocyclohexa- 1 ,4-dienyl)butanoate (Compound 6) Step 1 : Synthesis of 4-chlorobutyl 4-nitrobenzoate To a solution of 4-Chlorobutanol (1.09 g; 10.04 mmol) and TEA (1.7 ml; 12.05 mmol) in CH2C12 (25 ml) cooled at 0C, 4-Nitrobenzoyl chloride (2.23 g; 12.05 mmol) was added portionwise. The mixture was stirred 2 hours at room temperature then was washed with NaH2P04 (25 ml), H20 and brine. The residue was purified by flash chromatography (Biotage SPl instrument, SNAP cartridge silica 100 g, n-Hexane/EtOAc 9: 1, 10 CV) affording the title compound (2.48 g; Yield: 96%) 1H NMR (300 MHz, CDC13) delta 8.38-8.25 (m, 2H), 8.25-8.14 (m, 2H), 4.55-4.33 (m, 2H), 3.73-3.53 (m, 2H), 2.13-1.85 (m, 4H).

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. 928-51-8, 4-Chlorobutan-1-ol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; NICOX SCIENCE IRELAND; ALMIRANTE, Nicoletta; STORONI, Laura; RONSIN, Gael; BASTIA, Elena; WO2014/170264; (2014); A1;,
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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. 27489-62-9, name is trans-4-Aminocyclohexanol. This compound has unique chemical properties. The synthetic route is as follows. SDS of cas: 27489-62-9

General procedure: N,N-Diisopropylethylamine (3.0-4.0 eq) was added to 8-methoxyquinoline-3-carboxylic acid (1.0 eq) in solvent (dichloromethane, tetrahydrofuran,or N,N-dimethylformamide, 0.05 to 0.2 M) at room temperature. Then, 1-((dimethylamino)(dimethyliminio)methyl)-1H-[1,2,3]triazolo[4,5-b]pyridine 3-oxide hexafluorophosphate(V)(1.0-1.5 eq) was added and the reaction mixture was stirred for five minutes. Then, amine (1.0 – 2.0 eq) was added and the reaction mixture was stirred for one to sixteen hours. 10% Aqueous citric acid was added and the reaction mixture was extracted with dichloromethane, washed with saturated sodium bicarbonate, dried over magnesium sulfate, filtered,and concentrated. The resulting residue was purified by RP HPLC or silica gel chromatography to give the quinoline-3-carboxamide (1%-95% yield).

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it, 27489-62-9, trans-4-Aminocyclohexanol.

Reference:
Article; Deaton, David N.; Do, Young; Holt, Jason; Jeune, Michael R.; Kramer, H. Fritz; Larkin, Andrew L.; Orband-Miller, Lisa A.; Peckham, Gregory E.; Poole, Chuck; Price, Daniel J.; Schaller, Lee T.; Shen, Ying; Shewchuk, Lisa M.; Stewart, Eugene L.; Stuart, J. Darren; Thomson, Stephen A.; Ward, Paris; Wilson, Joseph W.; Xu, Tianshun; Guss, Jeffrey H.; Musetti, Caterina; Rendina, Alan R.; Affleck, Karen; Anders, David; Hancock, Ashley P.; Hobbs, Heather; Hodgson, Simon T.; Hutchinson, Jonathan; Leveridge, Melanie V.; Nicholls, Harry; Smith, Ian E.D.; Somers, Don O.; Sneddon, Helen F.; Uddin, Sorif; Cleasby, Anne; Mortenson, Paul N.; Richardson, Caroline; Saxty, Gordon; Bioorganic and Medicinal Chemistry; vol. 27; 8; (2019); p. 1456 – 1478;,
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Synthetic Route of 4461-39-6, 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. 4461-39-6, name is N-(2-Hydroxyethyl)-1,3-propanediamine. A new synthetic method of this compound is introduced below.

A stirred 20 L glass reactor was charged with sulfolane (14.2 kg) and 2-(3- aminopropylamino)ethanol (1.29 kg, 10.9 mol) at 90C. The solution was sparged with nitrogen through a Hasteloy C dip-leg, then anhydrous hydrogen bromide (total 1.77 kg, 21.9 mol) was slowly admitted below the liquid surface. The temperature during addition was allowed to rise to 119C during addition, the solution was stirred for 15 minutes and was then allowed to stand at 110C under nitrogen purge overnight. The solution temperature was raised to 120C and, using a Masterflex pump and 1/8 inch diameterTefion tubing, phosphorus tribromide (1.034 kg, 3.82 mol) was added over one hour. The tubing was rinsed into the reactor with more sulfolane (0.60 kg). While stirring rapidly at 1200C, nitrogen was bubbled through the dip-leg for one hour to remove excess HBr.[00039] To a stirred 30 L reactor under nitrogen containing acetone (16.8 kg), one-half of the hot sulfolane solution was transferred using a Vi inch diameter PTFE tube. The acetone slurry was stirred 15 minutes and then the reactor was drained into a polyethylene bench-top vacuum filtration funnel that was kept under nitrogen using a metal cover. The 30 L reactor was again charged with acetone (16.9 kg), purged with nitrogen, and the remaining hot sulfolane solution was transferred from the 20 L reactor. After stirring, the slurry was discharged and filtered into the same bench-top funnel. The 30 L reactor was charged with more acetone (6.8 kg), purged with nitrogen and heated to 50C. The hot acetone was carefully drained into the funnel and, under nitrogen, the combined solids were washed and filtered. This hot acetone wash was repeated in order to effectively remove sulfolane. The product was then dried to constant weight under vacuum at about 74C, giving the dihydrobromide salt (3.58 kg, 10.4 mol, 96% yield).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,4461-39-6, its application will become more common.

Reference:
Patent; ALBEMARLE CORPORATION; WO2007/53730; (2007); A1;,
Alcohol – Wikipedia,
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Adding a certain compound to certain chemical reactions, such as: 2240-88-2, 3,3,3-Trifluoropropan-1-ol, 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, Recommanded Product: 3,3,3-Trifluoropropan-1-ol, blongs to alcohols-buliding-blocks compound. Recommanded Product: 3,3,3-Trifluoropropan-1-ol

Intermediate S-i A: 3,3,3 -Trifluoropropyl trifluoromethanesulfonate Intermediate S-i A: 3,3,3 -Trifluoropropyl trifluoromethanesulfonateOF?3o (S-iA)[00136j To a cold (-25 °C), stirred solution of 2,6-lutidine (18.38 mL, 158 mmol) in DCM (120 mL) was added Tf20 (24.88 mL, 147 mmol) over 3 mm, and the mixture wasstirred for 5 mm. To the reaction mixture was added 3,3,3-trifluoropropan-i-ol (12 g,105 mmol) over an interval of 3 mm. After 2 hr, the reaction mixture was warmed to room temperature and stirred for 1 hr. The reaction mixture was concentrated to half its volume, then purified by loading directly on a silica gel column (330g ISCO) and the product was eluted with DCM to afford Intermediate S-iA (13.74 g, 53percent) as a colorlessoil. ?H NMR (400 MHz, CDC13) oe ppm 4.71 (2 H, t, J=6.i5 Hz), 2.49-2.86 (2 H, m).

The synthetic route of 2240-88-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; HAN, Wen-Ching; GILL, Patrice; GAVAI, Ashvinikumar, V.; QUESNELLE, Claude, A.; WO2014/47393; (2014); A1;,
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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. 2867-59-6, name is 3-Aminobutan-1-ol, molecular formula is C4H11NO, 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. Formula: C4H11NO

A mixture of 4-chloro-1-methyl-6-nitroquinolin-2(1/-/)-one (Intermediate F1 ; 250 mg, 1.05 mmol) and 3-aminobutan-1-ol (280 mg, 3.14 mmol) and DIPEA (0.36 mL, 2.10 mmol) in NMP (1.9 mL) was stirred at 160 C for 20h. The reaction mixture was allowed to cool to rt. The reaction mixture was diluted with water and extracted with EtOAc. The organic extracts were combined, washed with water and brine, dried (Na2S04) and concentrated in vacuo. Purification by flash chromatography (50 g KP-sil; 0% to 10% MeOH in CH2CI2, afforded 4- ((4-hydroxybutan-2-yl)amino)-1-methyl-6-nitroquinolin-2(1/-/)-one (200 mg, 66%). 1H NMR (500 MHz, CDCb) d 8.48 (d, J = 2.5 Hz, 1 H), 8.36 (dd, J = 9.3, 2.5 Hz, 1 H), 7.38 (d, J = 9.3 Hz, 1 H), 6.05 (d, J = 6.6 Hz, 1 H), 5.80 (s, 1 H), 4.10 – 3.97 (m, 1 H), 3.96 – 3.82 (m, 2H), 3.68 (s, 3H), 2.08 – 1.95 (m, 2H), 1.89 (dtd, J = 14.8, 6.3, 3.5 Hz, 1 H), 1.35 (d, J = 6.4 Hz, 3H). LCMS (Method T2) RT 1.21 min, m/z 292.13 [M+H]+.

With the rapid development of chemical substances, we look forward to future research findings about 2867-59-6.

Reference:
Patent; CANCER RESEARCH TECHNOLOGY LIMITED; THE INSTITUTE OF CANCER RESEARCH: ROYAL CANCER HOSPITAL; BELLENIE, Benjamin Richard; CHEUNG, Kwai Ming Jack; DAVIS, Owen Alexander; HOELDER, Swen; HUCKVALE, Rosemary; COLLIE, Gavin; MENICONI, Mirco; BRENNAN, Alfie; LLOYD, Matthew Garth; (222 pag.)WO2019/197842; (2019); A1;,
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