Category: 2695-47-8

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. 2695-47-8, name is 6-Bromo-1-hexene, A new synthetic method of this compound is introduced below., Quality Control of 6-Bromo-1-hexene

To a 25 mL reaction tube, 58.9 mg (0.60 mmol) of KOAc was added.After replacing argon three times, add 2 mL of 1,2-dichloroethane (DCE).40 muL (0.30 mmol, 1 equivalent) of compound A-5 was injected, and 88 muL (0.60 mmol) was injected.Compound B-1, 3.5 muL (0.03 mmol) of 2-bromophenol,After stirring for 16 hours under blue light, Compound C-5 was obtained.The yield was 91%.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; Zunyi Medical University; He Chunyang; Zhang Xingang; Zhao Liang; Zhu Erlin; Mao Ting; Liu Xiaoxiao; Li Xiaofei; (29 pag.)CN110156550; (2019); A;,
Bromide – Wikipedia,
bromide – Wiktionary

Related Products of 2695-47-8, These common heterocyclic compound, 2695-47-8, name is 6-Bromo-1-hexene, 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.

EXAMPLE 1 (E)-nona-2,8-diene-1-ol (II) 100 ml liquid ammonia and a catalytic amount of ferric nitrate (5 mg) are put into a 250 ml three-neck flask which is provided with an agitator, dry-ice condenser, dropping funnel with pressure compensation and with argon/ammonia flushing. 1.88 g (0.268M) lithium is added in portions to this mixture in such a manner that the blue color disappears between the additions. 7.21 g (7.49 ml, 0.129M) propargyl alcohol is added to the reaction mixture in 20 ml dry tetrahydrofuran during 25 minutes and the mixture is allowed to react for 1.5 hours during reflux after the addition. Subsequently, 14.0 g (10.86 ml, 85.8 mM) 1-bromo-5-hexene in 30 ml dry tetrahydrofuran is added over 30 minutes and the mixture is again allowed to react under reflux for 2.5 hours. Then, 2.05 g (0.298M) lithium is added in portions to the reaction mixture and the mixture is allowed to react one more hour. Subsequently, ammonium chloride is added in such an amount that the blue color of the reaction solution disappears and the main amount of the ammonia can evaporate. The reaction mixture is subsequently put in 20 g of ice and the mixture is allowed to warm up overnight to 25 C. The reaction mixture is extracted with ether and dried over magnesium sulfate. After the solvent has been drawn off, 9.3 g (66.4 mM) E-nona-2,8-diene-1-ol is obtained by bulb tube distillation of the residue at 105 C./0.5 mm pressure. This corresponds to a yield of 78%.

Statistics shows that 6-Bromo-1-hexene is playing an increasingly important role. we look forward to future research findings about 2695-47-8.

Reference:
Patent; Degussa; US4772727; (1988); A;,
Bromide – Wikipedia,
bromide – Wiktionary

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. 2695-47-8, name is 6-Bromo-1-hexene, A new synthetic method of this compound is introduced below., Recommanded Product: 6-Bromo-1-hexene

General procedure: A 70 ml oven dried autoclave containing a stirrer bar wascharged the AgI (0.5 mg, 0.002 mmol) and Cs2CO3 (978 mg, 3.0mmol). The autoclave was purged three time with CO2 and theterminal alkynes 1 (2.0 mmol), bromides 2 (3.0 mmol), and dryDMF (20 ml) were then added sequentially via a syringe. Theautoclave was then sealed and pressurized to the appropriatepressure with CO2. The reaction mixture was then stirred at 60C for 24 h and the autoclave was cooled to room temperatureand the remaining CO2 slowly vented from the system. Thereaction mixture was diluted with water (30 ml) and extractedwith ethyl acetate (30 ml ¡Á 3). The combined organic layerswere washed with water and brine, dried over Na2SO4, andfiltered. The solvent was removed under vacuum. The productwas isolated by column chromatography on silica gel.

The synthetic route of 2695-47-8 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Zhang, Linlin; Zhang, Wenzhen; Shi, Linglong; Ren, Xiang; Lue, Xiaobing; Cuihua Xuebao/Chinese Journal of Catalysis; vol. 34; 6; (2013); p. 1179 – 1186;,
Bromide – Wikipedia,
bromide – Wiktionary

Reference of 2695-47-8,Some common heterocyclic compound, 2695-47-8, name is 6-Bromo-1-hexene, molecular formula is C6H11Br, 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.

Step A: Preparation of 2,2,2-trifluoro-N-(hex-5-enyl)-N-methylacetamide 31a. Sodium hydride (60% dispersion in mineral oil, 31.5 g, 1.28 eq.) was slowly added under nitrogen atmosphere to a solution of N-methyl-2,2,2-trifluoroacetamide (100 g, 1.28 eq.) in DMF (500 mL) at 0 C. The reaction mixture was stirred for 90 min at 0 C., and then 6-bromo-1-hexene (100 g, 1 eq.) was added dropwise over 45 min. The reaction mixture was allowed to warm up to room temperature, and stirred for 3 days at room temperature. The reaction mixture was then poured into water and extracted tree time with EtOAc. The combined organics layers were dried over anhydrous sodium sulphate and concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel to produce compound 31a as colorless oil in 56% yield. 1H NMR (DMSO-d6, 400 MHz) delta 1.27-1.38 (m, 2H), 1.48-1.60 (m, 2H), 2.00-2.06 (m, 2H), 2.93-3.07 (2m, 3H), 3.35-3.40 (m, 2H), 4.92-5.04 (m, 2H), 5.73-5.83 (m, 1H).

The synthetic route of 2695-47-8 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Idenix Pharmaceuticals, Inc.; US2009/202480; (2009); A1;,
Bromide – Wikipedia,
bromide – Wiktionary

In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 2695-47-8 as follows. 2695-47-8

Sodium hydride (60% dispersion in mineral oil, 31.5 g, 1.28 eq.) was slowly added under nitrogen atmosphere to a solution of Lambda/-methyl-2,2,2-trifluoroacetamide (100 g, 1.28 eq.) in DMF (500 mL) at 0 0C. The reaction mixture was stirred for 90 min at 0 0C, and then 6-bromo-l-hexene (100 g, 1 eq.) was added dropwise over 45 min. The reaction mixture was allowed to warm up to room temperature, and stirred for 3 days at room temperature. The reaction mixture was then poured into water and extracted tree time with EtOAc. The combined organics layers were dried over anhydrous sodium sulphate and concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel to produce compound 31A as colorless oil in 56% yield. 1U NMR (DMSO-J6, 400 MHz) delta 1.27-1.38 (m, 2H), 1.48-1.60 (m, 2H), 2.00-2.06 (m, 2H), 2.93-3.07(2m, 3H), 3.35-3.40 (m, 2H), 4.92- 5.04 (m, 2H), 5.73-5.83 (m, IH).

According to the analysis of related databases, 2695-47-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; IDENIX PHARMACEUTICALS, INC.; PARSY, Christophe Claude; ALEXANDRE, Francois-Rene; LEROY, Frederic; CONVARD, Thierry; SURLERAUX, Dominique; WO2011/17389; (2011); A1;,
Bromide – Wikipedia,
bromide – Wiktionary

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. 2695-47-8 name is 6-Bromo-1-hexene, This 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. 2695-47-8

General procedure: A 70 ml oven dried autoclave containing a stirrer bar wascharged the AgI (0.5 mg, 0.002 mmol) and Cs2CO3 (978 mg, 3.0mmol). The autoclave was purged three time with CO2 and theterminal alkynes 1 (2.0 mmol), bromides 2 (3.0 mmol), and dryDMF (20 ml) were then added sequentially via a syringe. Theautoclave was then sealed and pressurized to the appropriatepressure with CO2. The reaction mixture was then stirred at 60C for 24 h and the autoclave was cooled to room temperatureand the remaining CO2 slowly vented from the system. Thereaction mixture was diluted with water (30 ml) and extractedwith ethyl acetate (30 ml ¡Á 3). The combined organic layerswere washed with water and brine, dried over Na2SO4, andfiltered. The solvent was removed under vacuum. The productwas isolated by column chromatography on silica gel.

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

Reference:
Article; Zhang, Linlin; Zhang, Wenzhen; Shi, Linglong; Ren, Xiang; Lue, Xiaobing; Cuihua Xuebao/Chinese Journal of Catalysis; vol. 34; 6; (2013); p. 1179 – 1186;,
Bromide – Wikipedia,
bromide – Wiktionary

Some common heterocyclic compound, 2695-47-8, name is 6-Bromo-1-hexene, molecular formula is C6H11Br, 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. 2695-47-8

Step A: Preparation of 2,2,2-trifluoro-N-(hex-5-enyl)-N-methylacetamide 1a. At 0 C. and under nitrogen atmosphere, sodium hydride (60% dispersion in mineral oil, 31.5 g, 1.28 eq.) was slowly added to a cooled solution of N-methyl-2,2,2-trifluoroacetamide (100 g, 1.28 eq.) in DMF (500 mL). The reaction mixture was stirred for 2 hrs at 0 C. and 6-bromo-1-hexene (100 g, 1 eq.) was added dropwise for 45 min. The reaction mixture was allowed to warm up to room temperature and was stirred for 3 days. The reaction mixture was poured into water and extracted three times with EtOAc. The combined organic layers were dried over anhydrous sodium sulphate, and evaporated under reduced pressure. The resulting residue was purified by chromatography on silica gel (petroleum ether/EtOAc) to yield compound 1a as colourless oil in 56% yield. 1H NMR (DMSO-d6, 400 MHz) delta (ppm) 1.27-1.38 (m, 2H), 1.48-1.60 (m, 2H), 2-2.06 (m, 2H), 2.93 (m, 3H), 3.35-3.40 (m, 2H), 4.92-5.04 (m, 2H), 5.73-5.83 (m, 1H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 2695-47-8, its application will become more common.

Reference:
Patent; Idenix Pharmaceuticals, Inc.; US2010/260710; (2010); A1;,
Bromide – Wikipedia,
bromide – Wiktionary