Day: September 17, 2020

165253-29-2, 3-(Bromomethyl)tetrahydrofuran is a Tetrahydrofurans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A solution of 3-(bromomethyl)tetrahydrofuran (2 g, 12.2 mmol) and AcSK (2.7 g, 24.4 mmol) in DMF (10 mL) was stirred overnight at rt. The mixture was poured into water (50 mL) and extracted with dichloromethane (50 mLx3). The organic extracts were combined, dried over anhydrous sodium sulfate, and concentrated to give crude S-(tetrahydrofuran-3-yl)m ethyl ethanethioate (2.0 g, quantative yield), which was used for next reaction without further purification. The compound was confirmed with LC- MS only: 161.27 (M+H)+, C7Hi202S.

165253-29-2, The synthetic route of 165253-29-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; NEUROPORE THERAPIES, INC.; STOCKING, Emily M.; WRASIDLO, Wolfgang J.; (175 pag.)WO2019/199864; (2019); A1;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

124391-75-9, (S)-(Tetrahydrofuran-3-yl)methanol is a Tetrahydrofurans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Step 1: Preparation of tetrahydrofuran-3-ylmethyl 4-methylbenzenesulfonate To a stirred solution of tetrahydro-3-furanmethanol (500 mg, 4.90 mmol) in DCM (5 mL) was added Et3N (892 mg, 8.81 mmol) and DMAP (60 mg, 0.49 mmol). Then to the mixture was added a solution of 4-methylbenzenesulfonyl chloride (1.4 g, 7.34 mmol) in DCM (5 mL) dropwise. After being stirred at 15 oC for 16 hrs, the resulting mixture was diluted with DCM (50 mL), washed with H2O (20 mL), 2 N HCl (20 mL) and brine (10 mL), then dried over anhydrous Na2SO4 and concentrated in vacuo to give tetrahydrofuran-3-ylmethyl 4- methylbenzenesulfonate (1.1 g) as a colorless oil, which was used in the next step directly without further purification.

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; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; CHENG, Zhanling; HAN, Xingchun; JIANG, Min; WANG, Jianhua; WANG, Min; WANG, Yongguang; YANG, Song; (319 pag.)WO2016/177655; (2016); A1;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

16874-33-2, Tetrahydrofuran-2-carboxylic acid is a Tetrahydrofurans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a solution of TETRAHYDROFURAN-2-CARBOXYLIC acid (20 g, 172. 2356 MMOL) in anhydrous ethanol (100 mL) was added concentrated sulfuric acid (0. 46 mL). The resulting mixture was stirred at reflux for 16 hours and then allowed to cool to ambient temperature. To this was added water (100 mL) and extracted with diethyl ether (3×100 mL). The combined organic extracts were washed with saturated aqueous sodium bicarbonate (2X50 mL), saturated aqueous sodium chloride (100 ML), dried (anhydrous magnesium sulfate), filtered and concentrated in vacuo to afford the pure product as a colorless liquid (22. 5964 g, 91 %). LRMS (m/z) : 145 (M+H) +. ‘H NMR (CDCI3, 300 MHz) 4. 38 (1H, dd, J= 4. 9, 8. 1 HZ), 4. 14 (2H, q, J= 7. 2 Hz), 3. 99-3. 92 (1 H, m), 3. 88-3. 81 (1 H, M), 2. 24-2. 12 (1 H, M), 2. 00-1. 79 (3H, m), 1. 22 (3H, t, J=7. 2Hz)., 16874-33-2

16874-33-2 Tetrahydrofuran-2-carboxylic acid 86079, aTetrahydrofurans compound, is more and more widely used in various fields.

Reference£º
Patent; PFIZER INC.; WO2004/92145; (2004); 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- (4-chloro-3-fluorobenzyloxymethyl) isoxazole-3-carboxylic acid (0.54 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 (amylene 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 a saturated aqueous sodium hydrogen carbonate solution, Wash with saturated brine , Dried over 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- (4-chloro-3-fluorobenzyloxymethyl) isoxazole-3-carboxamide (Hereinafter referred to as this amide compound (276)) 0.18 g was obtained., 184950-35-4

As the paragraph descriping shows that 184950-35-4 is playing an increasingly important role.

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.17347-61-4,2,2-Dimethylsuccinicanhydride,as a common compound, the synthetic route is as follows.

l-(2-aminoethyl)piperidin-2-one hydrobromide (178.2 mg, 0.8 mmol) was dissolved in DMF (0.9 mL). DIPEA (417 pL, 3.0 equiv.) was added, followed by 2,2- dimethylsuccinic anhydride (133 mg, 1.3 equiv.). The reaction mixture was agitated at ambient temperature for 12 hours and then directly purified by preparative HPLC (H20/MeCN with 0.1% TFA) to afford 51.7 mg (24% yield) of acid 1-170 as a white solid. ESI-MS found 271.2. C13H23N2O4 (MH+) requires 271.2., 17347-61-4

As the paragraph descriping shows that 17347-61-4 is playing an increasingly important role.

Reference£º
Patent; CARMOT THERAPEUTICS, INC.; ENQUIST, Johan; KRISHNAN, Shyam; ATWAL, Suman; ERLANSON, Daniel; FUCINI, Raymond V.; HANSEN, Stig; SAWAYAMA, Andrew; SETHOFER, Steven; (719 pag.)WO2019/183577; (2019); 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.696-59-3,2,5-Dimethoxytetrahydrofuran,as a common compound, the synthetic route is as follows.

696-59-3, 3-Chloroaniline (10.6 ml) and 2,5-dimethoxytetrahydrofuran (12.9 ml) are heated at 110C 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) (100 ml), dried over sodium sulphate and concentrated in vacuo. l-(3-Chloro-phenyl)-lH-pyrrole is isolated as black solid (35.2 g). IH-NMR (400 MHz, CDCl3): 6.38 (t, 2H), 7.10 (t, 2H), 7.30 (m, 4H).

As the paragraph descriping shows that 696-59-3 is playing an increasingly important role.

Reference£º
Patent; SYNGENTA PARTICIPATIONS AG; WO2008/155081; (2008); A2;,
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

Production Example 58 (0373) 5-(4-Trifluoromethylbenzyloxymethyl)isoxazole-3-carbo xylic acid (0.60g, 2.0 mmol), tetrahydrofuran-3-ylmethylamine hydrochloride (0.33 g, 2.4 mmol), triethylamine (0.25 g, 2.4 mmol) and 1-hydroxybenzotriazole (0.03 g, 0.24 mmol) were added to 5 mL of chloroform (amylene addition product). 1-Ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (0.46 g, 2.4 mmol) was added to the mixture at room temperature, and the mixture was stirred overnight and then concentrated under reduced pressure. Dilute hydrochloric acid was added to the concentrate, and the mixture was extracted twice with ethyl acetate. The organic layer was washed with saturated saline water, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The residue was applied to a silica gel column chromatography to obtain 0.40 g of N-(tetrahydrofuran-3-ylmethyl)-5-(4-trifluoromethylbenzylox ymethyl)isoxazole-3-carboxamide (hereinafter, referred to as Compound of Present Invention (63)) represented by the following formula. 1H-NMR(CDCl3, TMS, delta(ppm)):1.65-1.70(1H, m), 2.05-2.13(1H, m), 2.55-2.61(1H, m), 3.47(2H, dd), 3.60(1H, dd), 3.77(1H, dd,), 3.86(1H, dd), 3.91-3.93(1H, m), 4.67(2H, s), 4.69(2H, s), 6.75(1H, s), 6.94(1H, s), 7.47(2H, d), 7.63(2H, d), 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; MITSUDERA, Hiromasa; AWASAGUCHI, Kenichiro; AWANO, Tomotsugu; UJIHARA, Kazuya; EP2952096; (2015); 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.696-59-3,2,5-Dimethoxytetrahydrofuran,as a common compound, the synthetic route is as follows.

696-59-3, General procedure: To a solution of amine (1 mmol) in water (2 ml) was added tetrahydro-2,5-dimethoxyfuran (1.1 mmol) and gamma-Fe2O3(at)SiO2-Sb-IL (0.08 g). The reaction mixture was stirred at 100 C for a certain period of time as required to complete the reaction. During that time, the reaction was monitored constantly by TLC. After completion of the reaction, the catalyst was removed by using a magnet and washed with ethyl acetate. The aqueous solution was extracted by ethyl acetate (3 ¡Á 5 ml). The combined organic phase was dehydrated with anhydrous sodium sulfate. After the evaporation of the solvent, the residue was purified by silica gel flash chromatography using petroleum ether/ethyl acetate as the eluent to afford the pure product.

As the paragraph descriping shows that 696-59-3 is playing an increasingly important role.

Reference£º
Article; Ma, Fei-Ping; Li, Pei-He; Li, Bao-Le; Mo, Li-Ping; Liu, Ning; Kang, Hui-Jun; Liu, Ya-Nan; Zhang, Zhan-Hui; Applied Catalysis A: General; vol. 457; (2013); p. 34 – 41;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem

204512-95-8, (S)-Tetrahydrofuran-3-amine hydrochloride is a Tetrahydrofurans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

S-(-)-3-Aminotetrahydrofuran hydrochloride (149 mg, 1.20 mmol) and diisopropylamine (0.70 mL, 4.0 mmol) were added to 4-(3-ethyl-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydroindazol-1-yl)-2-fluorobenzonitrile (311 mg, 1.00 mmol) in DMSO (0.7 mL). The mixture was stirred at 60 C. for 48 hours. It was diluted with EtOAc (10 mL) and washed with H2O (10 mL) and sat. NaCl (10 mL). The material was concentrated and passed through a plug of silica eluting with EtOAc. After the solvent was removed, the white solid was dissolved in DMSO (0.4 mL) and EtOH (1.6 mL). To the solution were added 1 M NaOH (0.2 mL) and 30% H2O2 (0.2 mL). The reaction was stirred at 25 C. for 1 hour. It was diluted with EtOAc (10 mL) and washed with H2O (10 mL) and sat. NaCl (10 mL). The organic layer was dried over Na2SO4 and concentrated. Purification by gradient flash chromatography eluting with 0% to 100% EtOAc in hexanes provided (S)-4-(3-ethyl-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydro-1H-indazol-1-yl)-2-(tetrahydrofuran-3-ylamino)benzamide (251 mg, 63%) as a white solid (LC/MS m/z=397.1 [M+H]+). 1H NMR (DMSO, 20 C., 400 MHz) delta (ppm) 8.56 (d, 1H), 7.75 (d, 2H), 6.72 (s, 1H), 4.18 (s, 1H), 4.12 (q, 1H), 4.02-3.53 (m, 8H), 2.48 (s, 4H), 1.17 (t, 3H), 1.00 (s, 6H)., 204512-95-8

As the paragraph descriping shows that 204512-95-8 is playing an increasingly important role.

Reference£º
Patent; Huang, Kenneth He; Ommen, Andy J.; Barta, Thomas E.; Hughes, Philip F.; Veal, James; Ma, Wei; Smith, Emilie D.; Woodward, Angela R.; McCall, W. Stephen; US2008/269193; (2008); 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.184950-35-4,(Tetrahydrofuran-3-yl)methanamine hydrochloride,as a common compound, the synthetic route is as follows.

To a toluene solution (10 mL) of 5- (benzo [b] thiophen-2-ylmethyl) isoxazole-3-carboxylic acid chloride ( Tetrahydrofuran-3-ylmethylamine hydrochloride (150 mg, 1.09 mmol) And 1 mol / L sodium hydroxide aqueous solution (8 mL) were simultaneously added under cooling with ice water. After vigorously stirring for 30 minutes under cooling with ice water, The reaction mixture was extracted once with ethyl acetate. The organic layer was 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- (benzo [b] thiophen-2-ylmethyl) isoxazole-3-carboxamide (Hereinafter referred to as present amide compound (161)) 104 mg., 184950-35-4

The synthetic route of 184950-35-4 has been constantly updated, and we look forward to future research findings.

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