Category: alcohols-buliding-blocks

Application of 355-80-6, 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 355-80-6, name is 2,2,3,3,4,4,5,5-Octafluoro-1-pentanol. This compound has unique chemical properties. The synthetic route is as follows.

Synthesis of 4-methyl-2-[(2,2,3,3,4,4,5,5-octafluoropentyl)oxy]-1,3,2-dioxaphosphinane 29.90g (0.129mol) of 2,2,3,3,4,4,5,5-octafluoro-1-pentanol and 15.65g (0.155mol) of triethylamine were dissolved in 180ml of hexane to prepare a solution, and another solution was prepared by dissolving 20.00g (0.129mol) of 2-chloro-4-methyl-1,3,2-dioxaphosphinane in 20ml of hexane. The latter solution was dropped to the former solution while the former solution was fervently agitated at -10C for 3.5 hours. During the process, a formation of a white triethylammonium hydrochloride precipitate was to be found. The reaction mixture was further agitated for 3 hours at room temperature and allowed to stand for one night. The triethylammonium hydrochloride was separated from the resulting mixture and washed with hexane. Then, hexane was removed under the atmospheric pressure, and the residues were distilled under vacuum, obtaining 32.53g of a compound which is 4-methyl-2-[(2,2,3,3,4,4,5,5-octafluoropentyl)oxy]-1,3,2-dioxaphosphinane, represented by the following Chemical Formula 1A, The yield was 72%.

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 355-80-6, 2,2,3,3,4,4,5,5-Octafluoro-1-pentanol.

Reference:
Patent; Samsung SDI Co., Ltd.; Chernyshov, Denis; Shin, Woo-Cheol; Shatunov, Pavel Alexandrovich; Tereshchenko, Alexey; Egorov, Vladimir; Khasanov, Makhmut; Jeong, Myung-Hwan; EP2746288; (2014); A1;,
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Synthetic Route of 56-81-5, 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. 56-81-5, name is Propane-1,2,3-triol, molecular formula is C3H8O3, 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 a 1,4-dioxane solution (200 mL) containing glycerol(18.4 g, 0.20 mol) and vinyl benzoate (29.6 g, 0.20 mol),Lipozyme (30 g) was added, and the mixture was stirred for48 h at 55C. After removal of the enzyme by filtration, thereaction mixture was evaporated under reduced pressure andthe residue was partitioned between saturated brine and dichloromethane(100 mL each), and extracted with dichloromethane(3 60 mL). The combined organic layer waswashed with saturated brine, and dried over anhydrousNa2SO4. The extract was washed with hexane to removeunreacted vinyl benzoate. Subsequently, the extract was vacuumdried, affording 36 g of (±)-1 (75% yield) as a colorlessoil. IR (KBr), cm-1: 3600 – 3100, 3050, 1700, 1300, 690; 1HNMR (200 MHz, CDCl3) 3.64-3.86 (2H, m, C3H2), 4.04-4.14 (1H, m, C2H), 4.39-4.57 (2H, m, C1H2), 7.40-7.52 (2H,m, 2C7H), 7.56 (1H, m, C8H), 8.02-8.13 (2H, m, 2C6H); 13CNMR (CDCl3, 200MHz) 63.8 (C3), 65.5 (C1), 70.6 (C2),128.6 (2C7), 129.4 (2C6), 130.7 (C5), 133.1 (C8), 166.5(C4). EI-LR-MS, m/z, M+: 196.

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 56-81-5, Propane-1,2,3-triol.

Reference:
Article; Rustoy, Eduardo M.; Dana, Alejandro; Letters in Organic Chemistry; vol. 13; 1; (2016); p. 71 – 75;,
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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 13330-96-6, name is 4-(Dimethylamino)butan-1-ol. This compound has unique chemical properties. The synthetic route is as follows. COA of Formula: C6H15NO

Example 974-(Dimethylamino)butyl 2-(3-((2-ammo-4-(butylammo)-6-methylpyrimidin-5- yl)methyl)-4-methoxyphenyl)acetate, saccharin salt HATU (382 mg) was added to a stirred solution of the product from example 83 step (iv)(300 mg), 4-(dimethylamino)-l-butanol (196mg) and triethylamine (0.233ml) in DMF(3mL). The mixture was stirred at rt for Ih and then diluted with MeCN (2mL) and purified via RPHPLC. The purified product was dissolved in MeCN (ImL) and saccharin(14.84mg) was added and the solution was stirred for lOmin. The solvent was evaporated under reduced pressure and the residue was triturated with diethyl ether to give the title compound as a white solid, 31 mg.1H NMR DMSOdO: delta 7.66 – 7.55 (m, 7H), 7.10 (dd, IH), 6.96 (d, IH), 6.72 (d IH), 4.00 (t, 2H), 3.83 (s, 3H), 3.68 (s, 2H), 3.53 (s, 2H), 3.42 – 3.33 (m, 2H), 3.02 – 2.93 (m, 2H),2.71 (s, 6H), 2.10 (s, 3H), 1.68 – 1.51 (m, 4H), 1.47 (q, 2H), 1.27 – 1.15 (m, 2H), 0.85 (t,3H)LC-MS m/z 458 multimode +

With the rapid development of chemical substances, we look forward to future research findings about 13330-96-6.

Reference:
Patent; ASTRAZENECA AB; DAINIPPON SUMITOMO PHARMA CO., LTD; WO2009/67081; (2009); A1;,
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Reference of 931-17-9, 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 931-17-9, name is 1,2-Cyclohexanediol. This compound has unique chemical properties. The synthetic route is as follows.

EXAMPLE IV Cyclohexane-1, 2-diol (11.6 g.), RuCl3.1 -3H2 O(0.05 g.) and hexane (100 ml.) were added to the reactor of Example I. 100 g. of 40% peracetic acid were added and the reaction conducted as in Example I. This run resulted in a conversion of 81.5% and a molar selectivity to adipic acid of 80% was obtained.

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 931-17-9, 1,2-Cyclohexanediol.

Reference:
Patent; Atlantic Richfield Company; US3997578; (1976); A;,
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Application of 133803-81-3, 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. 133803-81-3, name is tert-Butyl 3-(2-(2-hydroxyethoxy)ethoxy)propanoate, molecular formula is C11H22O5, 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.

DIAD (730 muL, 3.60 mmol) was added dropwise to a stirred solution of 3-methoxy-5-nitrophenol (510 mg, 2.99 mmol), tert-butyl 3-(2-(2-hydroxyethoxy)ethoxy)propanoate (700 mg, 2.99 mmol) and triphenylphosphine (950 mg, 3.59 mmol) in THF (4 mL) at 0-5 C. The reaction was allowed to warm to rt and stirred at this temperature overnight. The reaction mixture was concentrated in vacuo. The crude product was purified by chromatography on silica gel (80 g column, 0-100% EtOAc in isohexane) to afford the sub-title compound (1.13 g) as a yellow oil, which solidified on standing. The product was used in the next without further purification. 1H NMR (400 MHz, DMSO-d6) delta: 7.34-7.32 (m, 2H), 6.98 (t, 1H), 4.21-4.19 (m, 2H), 3.85 (s, 3H), 3.76-3.74 (m, 2H), 3.60-3.56 (m, 4H), 3.52-3.50 (m, 2H), 2.40 (t, 2H), 1.38 (s, 9H).

According to the analysis of related databases, 133803-81-3, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Topivert Pharma Limited; Respivert Limited; BAKER, Thomas Matthew; FYFE, Matthew Colin Thor; HARBOTTLE, Gareth William; HASIMBEGOVIC, Vedran; MEGHANI, Premji; RIGBY, Aaron; SAMBROOK-SMITH, Colin; THOM, Stephen Malcolm; US2014/296208; (2014); A1;,
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Application of 27489-62-9 ,Some common heterocyclic compound, 27489-62-9, molecular formula is C6H13NO, 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 6-chloro-3-(7-methoxythieno[3,2-c]pyridin-2-yl)imidazo[1,2-b]pyridazine (20 mg, 0.0631 mmol, 1.0 equiv) in DMSO (2.0 mL) was added p-toluene sulfonic acid monohydrate (12 mg, 0.0631 mmol, 1.0 equiv) and amine (36 mg, 0.316 mmol, 5.0 equiv) and heated to 100 C. for 24 h. The reaction mixture was diluted with water and extracted with ethyl acetate. Purification by column chromatography using 5% methanol in dichloromethane elution gave 20 mg of the yellow solid, 80%. [0598] Compound 213, 217 was physically characterized by electrospray ionization mass spectrometry. Structures and molecular masses are given below in Table 59.

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. 27489-62-9, trans-4-Aminocyclohexanol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Califia Bio, Inc.; GOODFELLOW, VAL S.; NGUYEN, THONG X.; RAVULA, SATHEESH B.; GELBARD, HARRIS A.; US2014/256733; (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. 19819-98-8, name is 2-(o-Tolyl)ethanol, molecular formula is C9H12O, 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. Application In Synthesis of 2-(o-Tolyl)ethanol

General procedure: To a 1 dram vial equipped with a stir bar was added the alcohol (0.080 mmol), isopropyl (S)-2-(tert-butoxy)-2-(4?-(4,4-dimethylpiperidin- 1 -yl)-5-hydroxy-6?-methyl- [2,3?-bipyridinj-5?-yl)acetate (25 mg, 0.053 mmol), and triphenylphosphine (20.9 mg, 0.080 mmol) as a solution in THF (0.25 mL). To the solution was added DIAD (0.016 mL, 0.080 mmol) as a solution in THF (0.25 mL). The solution was stirred at r.t. for 30mm to 18 h. The reaction solution was concentrated under a N2 stream. The residue wasdissolved in EtOH (1.0 mL). To the solution was added aq. NaOH (5.0 M, 0.110 mL,0.532 mmol). The vial was capped, then placed in a 85 C heating block with stirring for4 h to 18 h. The mixture was cooled to r.t., then was filtered through a 0.4 micron syringefilter and the filtrate was directly subjected to HPLC purification to afford the purifiedproduct.

With the rapid development of chemical substances, we look forward to future research findings about 19819-98-8.

Reference:
Patent; VIIV HEALTHCARE UK (NO.5) LIMITED; BELEMA, Makonen; BOWSHER, Michael S.; DESKUS, Jeffrey A; EASTMAN, Kyle J.; GILLIS, Eric P; FRENNESSON, David B; IWUAGWU, Christiana; KADOW, John F.; NAIDU, B. Narasimhulu; PARCELLA, Kyle E.; PEESE, Kevin M; SAULNIER, Mark G; SIVAPRAKASAM, Prasanna; (463 pag.)WO2018/127800; (2018); A1;,
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Application of 5182-44-5, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.5182-44-5, name is 2-(3-Chlorophenyl)ethanol, molecular formula is C8H9ClO, molecular weight is 156.6095, as common compound, the synthetic route is as follows.

In a flame-dried 250 mL round-bottom flask equipped with an argon line, the appropriate alcohol (21a-26a) (1 eq. ) was placed and was dissolved in ether/acetonitrile (3: 1). To this solution, triphenylphosphine (3 eq. ), imidazole (3 eq. ) and iodine (3 eq.) were added in this order. The reaction mixture was kept at room temperature for 1 hours and monitored by TLC. The reaction mixture was filtered and washed with ether. The organic layers were then washed with brine, dried over MgS04, filtered and concentrated in vacuo. The residue was purified via flash chromatography on silica gel eluting with 1% ethyl acetate/hexanes to give 21b-26b in 58-88% yield. m-Chlorophenethyl iodine (21b) H NMR (CDC13) : 8 7.21-7. 19 (q, 3H), 7.12 (t, 1H), 3.52 (t, 2H), 3.28 (t, 2H).’3CNMR (CDC13) : 8 140.90, 134.14, 129.69, 129.06, 127.02, 126.45, 38.69, 11,27. IR (liquid film) 2948,2879, 1598,1574, 1429 FT-ICRMS : m/z 267. 52 (M. +H).

The chemical industry reduces the impact on the environment during synthesis 5182-44-5, I believe this compound will play a more active role in future production and life.

Reference:
Patent; UNIVERSITY OF MISSISSIPI; WO2003/95444; (2003); A1;,
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Reference of 623-04-1, Adding some certain compound to certain chemical reactions, such as: 623-04-1, name is (4-Aminophenyl)methanol,molecular formula is C7H9NO, 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 623-04-1.

For Fmoc-Leu-PABA 2j, a solution of Fmoc-Leu-OH (353 mg, 1 mmol), EEDQ (495 mg, 2 mmol) and PABA (222 mg, 1.8 mmol) in DCM (10 ml) was stirred for 10 h. All volatiles were removed on a rotovap, the residue was dissolved in Et2O (40 ml), chilled on dry ice for 2h and the solid was separated by centrifugation. The obtained crude material was purified on a column, eluent gradient of MeOH (1-2%) in CHCl3. Yield 444 mg (97%). MS: 459.4 [M+1]+.

According to the analysis of related databases, 623-04-1, the application of this compound in the production field has become more and more popular.

Reference:
Patent; ARROWHEAD RESEARCH CORPORATION; CHENG, Weijun; WONG, So; ALMEIDA, Aaron, M.; ROZEMA, David, B.; BLOKHIN, Andrei, V.; CARLSON, Jeffrey, C.; WO2015/21092; (2015); A1;,
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Adding a certain compound to certain chemical reactions, such as: 145691-59-4, (3,5-Dibromophenyl)methanol, 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, Safety of (3,5-Dibromophenyl)methanol, blongs to alcohols-buliding-blocks compound. Safety of (3,5-Dibromophenyl)methanol

3, [5-DIBROMOBENZYL ALCOHOL] (9.8 g, 36.9 [MMOL)] is dissolved in DMF (100 ml) and, while stirring, thionyl chloride (5 [ML)] is slowly added dropwise. [AFTER30 M IN,] the reaction mixture is concentrated in vacuo and the residue is taken up in EA (150 [ML). FORWORKUP,] the organic phase is washed with ice-water (50 ml) and then with half-saturated aqueous NaCi solution (50 [ML).] The organic phase is dried over [MGS04,] filtered and concentrated in vacuo. The title compound (10.4 g) is obtained as a yellow solid. TLC [PE/EA (95: [05)], RF=] 0.69.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,145691-59-4, (3,5-Dibromophenyl)methanol, and friends who are interested can also refer to it.

Reference:
Patent; ALTANA PHARMA AG; WO2004/12731; (2004); A1;,
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