Tag: M.W:100-200

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.124391-75-9,(S)-(Tetrahydrofuran-3-yl)methanol,as a common compound, the synthetic route is as follows.

REFERENCE EXAMPLE 6 Preparation of (tetrahydro-3-furanyl)methyl tosylate (Compound No. D5) A mixture comprising 50 g of (tetrahydro-3-furanyl)methanol, 95 g of tosyl chloride, 52 g of triethylamine and 450 ml of THF was refluxed for 8 hours. After separation of insolubles by filtration, the reaction fluid was concentrated under a reduced pressure, and the residue was purified by silica gel column chromatography (eluent: ethyl acetate/hexane=1/7) to obtain 114.5 g of (tetrahydro-3-furanyl)methyl tosylate.

124391-75-9, 124391-75-9 (S)-(Tetrahydrofuran-3-yl)methanol 40784875, aTetrahydrofurans compound, is more and more widely used in various fields.

Reference£º
Patent; Mitsui Toatsu Chemicals, Inc.; US5434181; (1995); A;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

112372-15-3, Furo[2,3-c]pyridine-2-carboxylic acid is a Tetrahydrofurans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A solution of [5-[4-(pyrrolidin-1-yl)piperidine-l -sulfonyl]pyridin-2-yl]methanamine (72 mg, 022 mmol, 1.00 equiv), furo[2,3-c]pyridine-2-carboxylic acid (40 mg, 0,25 mmol, 1.10 equiv), EDCI (85 mg, 0.44 mmol, 2.00 equiv), HOBt (36 mg, 0.27 mmol, 1.20 equiv), and tnethylamine (67.3 mg, 0.67 mmol, 3.00 equiv) in DMF (10 mL) was stirred for 1.5 h at rt. The reaction was then quenched by the addition of 50 mL of water and the resulting solution was extracted with 3×50 mL of ethyl acetate. The combined organic layers were washed with 3×100 mL of brine, dried over anhydrous sodium sulfate, and then concentrated under vacuum. The residue was purified on a silica gel column eluted with dichloromethane/methanol (50: 1 to 20: 1 ) to give 143 mg ( 14%) of the title compound as a light yellow solid LC MS (Method H, F.SI): RT = 101 min, m z = 470.0 [M+H] ‘ . 1HNMR (400 MHz, DMSO-d6) 5969-9.65 (t, J = 6 Hz, 1H), 9.08 (s, 1H), 8.85-8.84 (d,J= 2.1 Hz, 1H), 8.50-8.48 (d,J = 5.1 Hz, 1H), 8.15-8.11 (dd, J= 2.4, 8.4 Hz, 1H), 7.85-7.83 (d, J=5.1 Hz, 1H), 7.69-7.62 (d, J = 8.1 Hz, 2H), 4.72- 4.70 (d, J = 60 Hz, 2H), 3.50-3.47 (d, J=96 Hz, 2H), 2.50-249 (m, 6H), 2.05-2.01 (m, 1H), 1.87-1.84 (d, J = 108Hz,2H), 1.62 (s,4H), 1.45-1.38 (m, 2H)., 112372-15-3

As the paragraph descriping shows that 112372-15-3 is playing an increasingly important role.

Reference£º
Patent; GENENTECH, INC.; FORMA TM, LLC; BAIR, Kenneth W.; BAUMEISTER, Timm R.; DRAGOVICH, Peter; GOSSELIN, Francis; YUEN, Po-Wai; ZAK, Mark; ZHENG, Xiaozhang; WO2013/127267; (2013); A1;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

112372-15-3, Furo[2,3-c]pyridine-2-carboxylic acid is a Tetrahydrofurans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a suspension of furo[2,3-c] pidine-2-carboxylic acid (0.030 g, 0.47 1 mmol), 5-((2- (pidin-3 -yl) phenoxy) methyl)-4, 5 -dihydroisoxazol-3 -yl) methanamine dihydrochloride (¡À) (0.050 g, 0.156 mmol) in N,N-dimethylformamide (2 mL) wasadded BOP reagent (0.076 g, 0.172 mmol) and N,N-diisopropylethylamine (0.200 mL,1.286 mmol) at -5C under nitrogen atmosphere. Reaction mixture was stirred at room temperature for 14 h. The reaction mixture was poured onto ice water, extracted with ethyl acetate (2 x 15 mL). The combined ethyl acetate layer was washed with water, brine solution (2 x 5 mL). The organic phase was dried over sodium sulfate and concentrated under reduced pressure to give a residue. The residue was purified bycolumn chromatography (methanolldichloromethane = 4/96) to give the titled compound(0.012 g, 21%) as a solid. HPLC: 94.23 %; LCMS: m/z 430.2 [M+2] 1H NMR (400MHz, Chloroform-d) 8.88 (s, 1H), 7.72 – 7.52 (m, 5H), 7.48 (s, 1H), 7.21 – 7.07 (m,3H), 6.76 (td, J= 7.5, 1.1 Hz, 1H), 6.67 (d, J= 8.1 Hz, 1H), 4.99 (ddt, J= 10.7, 7.3, 4.0Hz, 1H), 4.45 (dd, J = 17.2, 5.8 Hz, 1H), 4.32 (dd, J = 17.2, 5.3 Hz, 1H), 3.36 (dt, J =13.2, 3.8 Hz, 1H), 3.29- 3.15 (m, 2H), 2.94 (dd, J= 17.3, 6.7 Hz, 1H)., 112372-15-3

112372-15-3 Furo[2,3-c]pyridine-2-carboxylic acid 13803072, aTetrahydrofurans compound, is more and more widely used in various fields.

Reference£º
Patent; AURIGENE DISCOVERY TECHNOLOGIES LIMITED; CHIKKANNA, Dinesh; KHAIRNAR, Vinayak; PANIGRAHI, Sunil Kumar; WO2014/111871; (2014); A1;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

42417-39-0, 3-Aminodihydrofuran-2(3H)-one hydrochloride is a Tetrahydrofurans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To synthesize 3-oxo-phenylacyl homoserine lactones, 400 mg of PS-carbodiimide resin (Argonaut Technologies) (793.65 g/mol; 0.504 mmol; 2.0 mol equiv) was added to a 10 mL reactivial (Pierce). To the reactivial, phenylacylcarboxylic acid (1.0 mol equiv), 2,2-dimethyl-l,3-dioxane-4,6-dione (Meldrum’s acid; 1.0 mol equiv), and 4,4- dimethylarainopyridine (1.05 mol equiv) were added with ~5 mL dichloromethane. The reaction was allowed to stir overnight at room temperature. Upon completion, the resin was removed by filtration, and the solvents were evaporated. Product was redissolved in ethyl acetate and washed with 0. IN HCl. The organic layer was dried over magnesium sulfate, which was removed by filtration. The solvents were removed in vacuo and the final product was dissolved in ~5 mL acetonitrile and transferred to a 10 mL reactivial (Pierce). To the reactivial, ?-aminobutryolactone HCl (1.0 mol equiv) and triethylamine (1.2 mol equiv) were added. The reaction mixture was then irradiated by microwave for 10 min at IOOW twice. Upon completion of microwave reaction, solvents were removed in vacuo. Crude product was redissolved in ethyl acetate with minimal water to aid solubility and washed once each with saturated Sodium bicarbonate, IM Potassium bisulfate, and saturated Sodium Chloride. The organic layer was dried over magnesium sulfate, which was removed by filtration. Solvents were removed in vacuo and the resulting product was redissolved in a minimal volume of ethyl acetate and loaded onto a 2Og flash chromatography column. The final product was purified by flash chromatography (Flashmaster system; Argonaut Technologies) using the gradient system shown in Table 1. Table 1.Fractions were collected and analyzed by thin layer chromatography (80:20 Ethyl acetate/hexanes). Fractions containing product were collected and solvents were removed in vacuo. The final product was confirmed by H-NMR and mass spectrometry (H-NMR results presented in Example 14).

42417-39-0, The synthetic route of 42417-39-0 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; HEALTH RESEARCH INC.; DOLNICK, Bruce, J.; WO2006/110531; (2006); A2;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.165253-29-2,3-(Bromomethyl)tetrahydrofuran,as a common compound, the synthetic route is as follows.

A solution of 3-(bromomethyl)tetrahydrofuran (8.OOg, 48.48 mmol) and 2-amino pyridine (9.12g,97.02 mmol) in sulfolane (250 mL) was heated to 80 00 for 70 hours. The reaction was thencooled to room temperature and then diluted with 5 L of CH2CI2, and twice extracted with 500 mL of water. The aqueous phase was concentrated in vacuo. To the residue was then added CH2CI2 (100 mL) and a thick orange oil precipitated. The CH2CI2 was decanted and the oil dried in vacuo to afford the desired salt as a wax contaminated with a trace amount of sulfolane (1 .1 g,9percent yield).LC-MS: mass calc?d. for 010H15N20 [M] 179.1, found 179.3; RT = 0.326 mm.

165253-29-2, 165253-29-2 3-(Bromomethyl)tetrahydrofuran 14173422, aTetrahydrofurans compound, is more and more widely used in various fields.

Reference£º
Patent; BASF SE; BANDUR, Nina Gertrud; MCLAUGHLIN, Martin John; POHLMAN, Matthias; DIETZ, Jochen; VON DEYN, Wolfgang; WO2015/28630; (2015); A1;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

184950-35-4, (Tetrahydrofuran-3-yl)methanamine hydrochloride is a Tetrahydrofurans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

5- [3- (6-methoxy-2-naphthyl) propyl] isoxazole-3-carboxylic acid (0.62 g, 2.0 mmol) Tetrahydrofuran-3-ylmethylamine hydrochloride (0.41 g, 3.0 mmol), Triethylamine (0.30 g, 3.0 mmol) And 1-hydroxybenzotriazole (0.03 g, 0.2 mmol) Was added to chloroform (ammylene added product) (5 mL). To the mixture, 1-Ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride (0.46 g, 2.4 mmol) was added at room temperature, After stirring overnight, And concentrated under reduced pressure. Dilute hydrochloric acid was added to the residue, And extracted three times with ethyl acetate. The organic layer was washed with saturated aqueous sodium hydrogen carbonate solution, Washed with saturated brine, After drying with anhydrous sodium sulfate, And concentrated under reduced pressure. The residue was subjected to silica gel column chromatography, The following equation Indicated by N- (tetrahydrofuran-3-ylmethyl) -5- [3- (6-methoxy-2-naphthyl) propyl] isoxazole-3-carboxamide (Hereinafter referred to as the amide compound (247)) 0.48 g was obtained., 184950-35-4

184950-35-4 (Tetrahydrofuran-3-yl)methanamine hydrochloride 17750392, aTetrahydrofurans compound, is more and more widely used in various fields.

Reference£º
Patent; SUMITOMO CHEMICAL COMPANY LIMITED; SUMITA, YUSUKE; (264 pag.)JP2015/51963; (2015); A;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.19311-37-6,3-Bromotetrahydrofuran,as a common compound, the synthetic route is as follows.

To the saturated Na2S03 aqueous solution (20.0 mL) was added 3-bromotetrahydrofuran (2.00 g, 14.83 mmol). The mixture was heated to reflux and stirred for 24hand then concentrated in vacuo. The residue was stirred with EtOH (30 mL) at 50 oc for 30min, then filtered immediately. The filtrate was concentrated in vacuo and the residue was driedin vacuo to give the title compound as a white solid (1.81 g, yield 72.6%).MS (ESI, neg. ion) m/z: 151.1 [M-Nar;1H NMR (400 MHz, DMSO-d6) 8 (ppm): 3.80 (t, J = 8.6 Hz, 1H), 3.71-3.64 (m, 2H), 3.63-3.57(m, 1H), 3.20-3.11 (m, 1H), 2.02-1.87 (m, 2H).

19311-37-6, The synthetic route of 19311-37-6 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; SUNSHINE LAKE PHARMA CO., LTD.; CALITOR SCIENCES, LLC; DAI, Weilong; XI, Ning; LI, Minxiong; ZHANG, Tao; LI, Xiaobo; HU, Haiyang; CHEN, Wuhong; WANG, Tingjin; LIU, Jun; (188 pag.)WO2017/48675; (2017); A1;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

696-59-3, 2,5-Dimethoxytetrahydrofuran is a Tetrahydrofurans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

3-Chloroaniline (10.6 ml) and 2,5-dimethoxytetrahydrofuran (12.9 ml) are heated at 1 100C in acetic acid (100 ml) for 5 hours and 30 minutes. To the cooled reaction mixture, water (500 ml) is added and the reaction is stirred overnight. The brown precipitate formed is filtered and subsequently dissolved in dichloromethane, washed with aqueous sodium hydrogencarbonate (saturated) (1 00 ml), dried over sodium sulphate and concentrated in vacuo. 1-(3-Chloro-phenyl)-1 H-pyrrole is isolated as black solid (35.2 g). 1 H-NMR (400 MHz, CDCI3): 6.38 (t, 2H), 7.10 (t, 2H), 7.30 (m, 4H)., 696-59-3

696-59-3 2,5-Dimethoxytetrahydrofuran 79098, aTetrahydrofurans compound, is more and more widely used in various fields.

Reference£º
Patent; SYNGENTA PARTICIPATIONS AG; CORSI, Camilla; WENDEBORN, Sebastian Volker; BOBBIO, Carla; KESSABI, Jilali; SCHNEITER, Peter; GRASSO, Valeria; HAAS, Ulrich Johannes; WO2010/69879; (2010); A1;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.17347-61-4,2,2-Dimethylsuccinicanhydride,as a common compound, the synthetic route is as follows.

Synthesis of BA-derivatives 30, 35, 39-40, 45-48. A solution of the appropriate BA analog (1 eq), DMAP (1.5 eq) and the appropriate acid anhydride (5 eq) in anhydrous pyridine (1.5 mL) was stirred at 160 0C for 2 h using microwave (Biotage). The reaction mixture was diluted with EtOAc (15 mL) and washed three times with 20percent HCl solution and distilled water. The organic layer was dried over anhydrous Na2SO4 and concentrated to dryness under reduced pressure. The residue was chromatographed using a silica gel column to yield pure target compounds.

17347-61-4, 17347-61-4 2,2-Dimethylsuccinicanhydride 87067, aTetrahydrofurans compound, is more and more widely used in various fields.

Reference£º
Patent; THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL; DUKE UNIVERSITY; LEE, Kuo-Hsiung; QIAN, Keduo; YU, Donglei; CHEN, Chin-Ho; HUANG, Li; BORI, Ibrahim Danlami; WO2010/132334; (2010); A1;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.17347-61-4,2,2-Dimethylsuccinicanhydride,as a common compound, the synthetic route is as follows.

To a chilled solution (ice/water bath) of bromobenzene (7.71 g, 49.1 mmol) and 3,3-dimethyldihydro-2,5-furandione (5.99 g, 46.7 mmol) in dichloroethane (150 mL) was added aluminum trichworide (13.28 g, 99.58 mmol). The ice bath was removed and the reaction mixture was stirred at rt overnight. The mixture was again chilled in an ice/water bath, and then quenched with 1 M aqueous hydrochloric acid. Water (70 mL) was added and the layers were separated. The aqueous layer was extracted with ethyl acetate (3.x.50 mL). The combined organic layers were dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography (Biotage apparatus, 17:83 ethyl acetate/hexane) to give 4-(4-bromophenyl)-2,2-dimethyl-4-oxobutanoic acid as a white solid (8.34 g, 63percent). LC-MS: ret. time 2.79 min; m/z 284.8 (MH+); 1H NMR (300 MHz, CDCl3) delta 1.36 (s, 6H), 3.27 (s, 2H), 7.60 (d, 2H), 7.81 (d, 2H).

17347-61-4, 17347-61-4 2,2-Dimethylsuccinicanhydride 87067, aTetrahydrofurans compound, is more and more widely used in various fields.

Reference£º
Patent; Bayer Pharmaceuticals Corporation; US2004/224997; (2004); A1;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem