Category: 701-16-6

5-Fluoro-2-methylbenzo[d]oxazole, cas is 701-16-6, it is a common heterocyclic compound, the benzoxazole compound, its synthesis route is as follows.,701-16-6

General procedure: The SBOs were prepared by the base-catalysed condensation of the appropriate 5-halogeno-2-methylbenzoxazole with the requisite aromatic aldehyde under phase transfer conditions. In a typical experiment, equimolar quantities (5 mmol) of the starting materials were dissolved in dichloromethane (20-50 ml) in the presence of benzyltriethylammonium chloride (3 mmol) and stirred magnetically under a nitrogen atmosphere as an aqueous solution of sodium hydroxide (50%, w/v, 5 ml) was added dropwise over a period of 10 min. After being stirred for 2-36 h until analytical thin layer chromatography indicated that the reaction was complete, the mixture was diluted with water (50 ml) and the SBO was extracted with dichloromethane (3¡Á20 ml), dried (MgSO4), filtered, evaporated under reduced pressure and recrystallized from aqueous methanol or ethanol.

With the rapid development of chemical substances, we look forward to future research findings about 5-Fluoro-2-methylbenzo[d]oxazole

Reference£º
Article; Ayrton, Stephen T.; Panova, Jekaterina; Michalik, Adam R.; Martin, William H.C.; Gallagher, Richard T.; Bowen, Richard D.; International Journal of Mass Spectrometry; vol. 345-347; (2013); p. 120 – 131;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem

As a common heterocyclic compound, it belongs to quinuclidine compound,Quinuclidine-4-carboxylic acid hydrochloride,40117-63-3,Molecular formula: C8H14ClNO78,mainly used in chemical industry, its synthesis route is as follows.,701-16-6

5-Fluoro-2-Methyl-6-Nitrobenzoxazole (10) Concentrated sulfuric acid (60 mL) was stirred mechanically and cooled in an ice/water bath. To this was gradually added 5-fluoro-2-methylbenzoxazole (9), (20 g, 0.132 Moles), at such a rate that the temperature stayed at 15-20 C., over a 15-20 minute period. A solution of concentrated sulfuric acid (11 mL), and concentrated nitric acid (10 mL), was prepared and added drop by drop to the benzoxazole solution at such a rate that the temperature was maintained at approximately 10 C.

With the complex challenges of chemical substances, we look forward to future research findings about 5-Fluoro-2-methylbenzo[d]oxazole,belong benzoxazole compound

Reference£º
Patent; Eastman Kodak Company; US2005/101784; (2005); A1;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem

As a common heterocyclic compound, it belongs to benzoxazole compound, name is 5-Fluoro-2-methylbenzo[d]oxazole, and cas is 701-16-6, its synthesis route is as follows.,701-16-6

7. 4-(5-Fluoro-2-methvl-1 ,3-benzoxazol-3-ium-3-yl)butane-1 -sulfonate; 5-Fluoro-2-methylbenzoxazole (from Example 2, 500mg, 3.3mmol) and 1 ,4-butanesultone (2.50ml) were mixed and heated under nitrogen at 1100C for 1 deltahrs. The reaction mix was then allowed to cool to room temperature and triturated with diethyl ether to give an immiscible gum. The liquors were decanted, the gum washed with more ether and dried under vacuum. The crude product salt was then used for dye syntheses without further purification.

With the complex challenges of chemical substances, we look forward to future research findings about 5-Fluoro-2-methylbenzo[d]oxazole

Reference£º
Patent; GE HEALTHCARE UK LIMITED; WO2008/40994; (2008); A2;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem

5-Fluoro-2-methylbenzo[d]oxazole, cas is 701-16-6, it is a common heterocyclic compound, the benzoxazole compound, its synthesis route is as follows.,701-16-6

General procedure: The SBOs were prepared by the base-catalysed condensation of the appropriate 5-halogeno-2-methylbenzoxazole with the requisite aromatic aldehyde under phase transfer conditions. In a typical experiment, equimolar quantities (5 mmol) of the starting materials were dissolved in dichloromethane (20-50 ml) in the presence of benzyltriethylammonium chloride (3 mmol) and stirred magnetically under a nitrogen atmosphere as an aqueous solution of sodium hydroxide (50%, w/v, 5 ml) was added dropwise over a period of 10 min. After being stirred for 2-36 h until analytical thin layer chromatography indicated that the reaction was complete, the mixture was diluted with water (50 ml) and the SBO was extracted with dichloromethane (3¡Á20 ml), dried (MgSO4), filtered, evaporated under reduced pressure and recrystallized from aqueous methanol or ethanol.

701-16-6 is used more and more widely, we look forward to future research findings about 5-Fluoro-2-methylbenzo[d]oxazole

Reference£º
Article; Ayrton, Stephen T.; Panova, Jekaterina; Michalik, Adam R.; Martin, William H.C.; Gallagher, Richard T.; Bowen, Richard D.; International Journal of Mass Spectrometry; vol. 345-347; (2013); p. 120 – 131;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem

701-16-6, 5-Fluoro-2-methylbenzo[d]oxazole is a benzoxazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,701-16-6

(b) 5-Fluoro-2-methyl-6-nitrobenzo[d]oxazole (2667) To a solution of 5-fluoro-2-methylbenzo[d]oxazole (1 .65 g) in sulfuric acid (10 ml) was added a mixture of nitric acid (2.5 m) and sulfuric acid (2.5 ml) at 0 C. The reaction was allowed to stir at room temperature for 30 minutes whereupon LCMS indicated complete conversion. After 1 hour, the reaction was slowly poured onto crushed ice then diluted with water. After stirring 20 minutes, the solids were collected, rinsed well with water, and suction dried to afford the titled compound (1 .85 g) as a pink solid. LCMS m/z = 196.9 [M+H]. NMR (400 MHz, DMSO-d6) delta ppm 2.71 (s, 3H), 7.97 (d, J=1 1 .12 Hz, 1 H), 8.64 (d, J=6.32 Hz, 1 H).

As the paragraph descriping shows that 701-16-6 is playing an increasingly important role.

Reference£º
Patent; GLAXOSMITHKLINE INTELLECTUAL PROPERTY DEVELOPMENT LIMITED; ADAMS, Jerry Leroy; ATOR, Laura E.; DUFFY, Kevin J.; GRAYBILL, Todd L.; KIESOW, Terence John; LIAN, Yiqian; MOORE, Michael Lee; RALPH, Jeffrey M.; RIDGERS, Lance Howard; (370 pag.)WO2017/98421; (2017); A1;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem

5-Fluoro-2-methylbenzo[d]oxazole, cas is 701-16-6, it is a common heterocyclic compound, the benzoxazole compound, its synthesis route is as follows.,701-16-6

General procedure: The SBOs were prepared by the base-catalysed condensation of the appropriate 5-halogeno-2-methylbenzoxazole with the requisite aromatic aldehyde under phase transfer conditions. In a typical experiment, equimolar quantities (5 mmol) of the starting materials were dissolved in dichloromethane (20-50 ml) in the presence of benzyltriethylammonium chloride (3 mmol) and stirred magnetically under a nitrogen atmosphere as an aqueous solution of sodium hydroxide (50%, w/v, 5 ml) was added dropwise over a period of 10 min. After being stirred for 2-36 h until analytical thin layer chromatography indicated that the reaction was complete, the mixture was diluted with water (50 ml) and the SBO was extracted with dichloromethane (3¡Á20 ml), dried (MgSO4), filtered, evaporated under reduced pressure and recrystallized from aqueous methanol or ethanol.

As the rapid development of chemical substances, we look forward to future research findings about 701-16-6

Reference£º
Article; Ayrton, Stephen T.; Panova, Jekaterina; Michalik, Adam R.; Martin, William H.C.; Gallagher, Richard T.; Bowen, Richard D.; International Journal of Mass Spectrometry; vol. 345-347; (2013); p. 120 – 131;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.701-16-6,5-Fluoro-2-methylbenzo[d]oxazole,as a common compound, the synthetic route is as follows.

701-16-6, General procedure: The SBOs were prepared by the base-catalysed condensation of the appropriate 5-halogeno-2-methylbenzoxazole with the requisite aromatic aldehyde under phase transfer conditions. In a typical experiment, equimolar quantities (5 mmol) of the starting materials were dissolved in dichloromethane (20-50 ml) in the presence of benzyltriethylammonium chloride (3 mmol) and stirred magnetically under a nitrogen atmosphere as an aqueous solution of sodium hydroxide (50%, w/v, 5 ml) was added dropwise over a period of 10 min. After being stirred for 2-36 h until analytical thin layer chromatography indicated that the reaction was complete, the mixture was diluted with water (50 ml) and the SBO was extracted with dichloromethane (3¡Á20 ml), dried (MgSO4), filtered, evaporated under reduced pressure and recrystallized from aqueous methanol or ethanol.

The synthetic route of 701-16-6 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Ayrton, Stephen T.; Panova, Jekaterina; Michalik, Adam R.; Martin, William H.C.; Gallagher, Richard T.; Bowen, Richard D.; International Journal of Mass Spectrometry; vol. 345-347; (2013); p. 120 – 131;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem

701-16-6, 5-Fluoro-2-methylbenzo[d]oxazole is a benzoxazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

701-16-6, [0436] Compound 50: To a solution of Comp-50c (3.95 g, 26.15 mmol) in THF:iBuOH (50 mL 4: 1 ) was added t-BuOK (8.78 g, 78.47 mmol) and the reaction mixture was stirred for 10 min. Comp-3b (5.18 g, 23.54 mmol) was added portion wise and the reaction mixture was stirred at room temperature for 16h. Progress of the reaction was monitored by TLC and LCMS. After completion, the reaction mixture was quenched with H20 and extracted with EtOAc. The organic layer was washed with brine, separated, dried over anhydrous Na2SO4 and concentrated in vacuo. The crude obtained was purified by column chromatography (silica, 100-200 mesh, 2-3% MeOH in ethyl acetate) to afford (E)-2-(2-(2,5-dimethyl-l-(l- me1hylpiperidin-4-yl)-lH-pyrrol-3-y])viny])-5-fluorobenzo[d]oxazole (50; 1.8 g, 20%) as yellow solid. (0756) [0437] HPLC Purity: 98.7%. (0757) [0438] MS (ESI) m/e |M+H|+/ Rt/%: 354.20/1.42/98.2%. (0758) [0439] 1H NMR (400 MHz, DMSO-c delta 1.69-1.72 (m, 2 H) 1.98 – 2.07 (m, 2 H) 2.11 – 2.17 (m, 2H) 2.20 (s, 3 H) 2.27 (s, 3H) 2.38 (s, 3 H) 2.88 (d, J=11.25 Hz, 2 H) 3.92-3.98 (m, 1 H) 6.26 (s, 1 H) 6.51 (d, J=15.65 Hz, 1 H) 7.11-7.16 (m, 1 H) 7.46 (dd, J=9.05, 2.69 Hz, 1 H) 7.62 – 7.71 (m, 2 H).

The synthetic route of 701-16-6 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; ALPINE ANDROSCIENCES, INC.; PATIL, Santhosh N.; SARMA, Bugga VNBS; (148 pag.)WO2019/152731; (2019); A1;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem

701-16-6,With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.701-16-6,5-Fluoro-2-methylbenzo[d]oxazole,as a common compound, the synthetic route is as follows.

[0552] To a stirred solution of Comp-48e (0.27 g, 1.32 mmol) and Comp-50c (0.2 g, 1.32 mmol) in THF:t-BuOH (5 mL 4:1) was added f-BuOK (0.15 g, 1.32 mmol) at 0 C and the reaction mixture was stirred at RT for 2 h. Progress of the reaction was monitored by TLC and LCMS. After completion, the reaction mixture was poured on crushed ice and extracted with EtOAc (30 mL X 2). The combined organic layer was washed with brine, dried over anhydrous Na2SO4 and concentrated under reduced pressure. The crude compound was purified by column chromatography (silica, 100-200 mesh, 30-40% EtOAc in hexane) to afford (E)-5-fluoro-2-(2-(5-methyl-l-(l-methylpiperidin-4-yl)-lH-pyrazol-4- yl)vinyl)benzo[d]oxazole (78, 0.07 g, 15%) as pale yellow solid. (0972) [0553] HPLC purity : 99.89% (0973) [0554] MS (ESI) m/e [M+H]+/Rt %: 341.15/1.22/99.6% (0974) [0555] 1H NMR (400 MHz, DMSO-d6) delta 1.80 (d, .7=11.25 Hz, 2 H), 2.01 – 2.07 (m, 2 H), 2.08 – 2.17 (m, 2 H), 2.25 (s, 3H), 2.42 (s, 3 H), 2.91 (d, J=8.80 Hz, 2 H), 4.12 – 4.23 (m, 1 H), 6.91 (d, J=16.14 Hz, 1 H), 7.17-7.23 (m, 1 H), 7.54 (dd, J=9.05, 2.69 Hz, 1 H), 7.64 (d, J=16.14 Hz, 1 H), 7.69 (dd, J=8.80, 4.40 Hz, 1 H), 8.05 (s, 1 H).

As the paragraph descriping shows that 701-16-6 is playing an increasingly important role.

Reference£º
Patent; ALPINE ANDROSCIENCES, INC.; PATIL, Santhosh N.; SARMA, Bugga VNBS; (148 pag.)WO2019/152731; (2019); A1;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem

A common heterocyclic compound, the benzoxazole compound, name is 5-Fluoro-2-methylbenzo[d]oxazole,cas is 701-16-6, mainly used in chemical industry, its synthesis route is as follows.,701-16-6

[0614] To a stirred solution of Comp-50c (0.073 g, 0.48 mmol) in mixture of THF (5 mL) and tBuOH (0.5 mL) was added t-BuOK (0.16 g, 1.46 mmol) at 0 C. Comp-80b (0.1 g, 0.48 mmol) was added portion wise and the reaction mixture was stirred at RT for 16 h. Progress of the reaction was monitored by TLC and LCMS. After completion, the reaction mixture was quenched with H20 (5 mL) and extracted with EtOAc (10 mL X 2). The organic layer was washed with brine, separated, dried over anhydrous Na2SC>4 and concentrated under reduced pressure. The crude obtained was purified by column chromatography (silica, 100- 200 mesh, 2-5% EtOAc in hexane) to afford (E)-2-(2-(l-cyclohexyl-2,5-dimethyl-lH-pyrrol- 3-yl)vinyl)-5-fluorobenzo[d]oxazole (104, 0.08 g, 51%) as a yellow solid. (1076) [0615] HPLC Purity: 99.4% (1077) [0616] MS (ESI) m/e [M+H]+/ Rt’%: 339.15/2.56/99.8% (1078) [0617] 1H NMR (400 MHz, DMSO-d6) delta 1.17 – 1.27 (m, 2 H), 1.35 – 1.45 (m, 2 H), 1.62 – 1.69 (m, 1 H), 1.73 – 1.96 (m, 6 H), 2.22 – 2.27 (m, 3 H), 2.35 – 2.39 (m, 3 H), 6.20 – 6.25 (m, 1 H), 6.46 – 6.53 (m, 1 H), 7.09 – 7.16 (m, 1 H), 7.41 – 7.48 (m, 1 H), 7.60 – 7.66 (m, 1 H), 7.66 – 7.70 (m, 1 H).

As the rapid development of chemical substances, we look forward to future research findings about 701-16-6

Reference£º
Patent; ALPINE ANDROSCIENCES, INC.; PATIL, Santhosh N.; SARMA, Bugga VNBS; (148 pag.)WO2019/152731; (2019); A1;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem