2-Bromo-1-phenyl-pentan-1-one CAS 49851-31-2 with wholesale price high quality high customer satisfaction and safe fast delivery CAS NO.49851-31-2

    Yiwu Demei e-commerce firm is a dynamic and innovative enterprise, specializing in the research, manufacture and distribution of high-quality pharmaceutical ingredients and organic compounds. We are firmly committed to promoting the development of the global pharmaceutical industry and promoting the export of China's pharmaceutical products to the world. Our extensive product portfolio has been recognized in key markets. Adhering to the principle of honesty and transparency, we give priority to establishing a trustworthy relationship with customers to ensure the success and long-term cooperative partnership between the two sides.The company is located in Shijiazhuang, Hebei Province, the hub of Beijing-Tianjin-Hebei, and has more than ten years of industry experience. The affiliated factory covers an area of 7000 square meters. In addition, it also has its own excellent talent pool. Our high-tech R&D team has more than 200 R&D personnel in the workshop. In recent years, our products have been exported to Britain,Germany, Australia, the Netherlands, Poland, Russia, Kazakhstan, the Philippines, Malaysia, Singapore and many other regions. We do business with customers on the principle of honesty and trustworthiness. We are committed to satisfying our customers and gaining the greatest recognition from them within the scope permitted by law. We pay attention to every detail and strive to provide customers with the best services in procurement, research and development, quality control and safe transportation, so as to establish long-term cooperative relations with customers.

    The goal of our company is to become the best choice among pharmaceutical and chemical suppliers as soon as possible, with excellent product quality, in-place pre-sales and post-sales services, and safe and fast transportation and delivery. Therefore,as the company continues to develop, we will actively listen to opinions from all aspects. Comments and suggestions, participate in industry exchanges and learning, and strive to be an enterprise that keeps up with the trends of the times, produce, develop, and sell the latest products on the market, continue to grow and progress, and contribute a small amount to China's pharmaceutical and chemical trade.
 

Factory

    Our factory has a stable annual output of 50,000 tons of raw materials all year round. The production chain and sales chain continue to be saturated. Our warehouse has a large reserve of powder and liquid stocks. We welcome people from all walks of life to support and cooperate.

Packaging Details
Aluminum packages,carton box,wooden box,customized packaging
Warehouse:China
Delivery Detail
1.Delivery time:Within 3-15 days after the contracttakes effect

2.Delivery location:Address of the consignee(shouldbe the contracting unit)

3.Delivery method:We are responsible for thetransportation of the goods,FOB price

4.Freight method:air freight,ship freight
Payment Terms
Alibaba,Bitcoin,T/T,,Money Gram,Alipay and other remittance methods.

FAQ

1. Are you a manufacturer or a trader?We are an integrated company of industry and trade. We have our own factory and our own foreign trade department, with more than ten years of industry experience.
2.What is your minimum order quantity?
Different products have different minimum order quantities. Generally, the minimum order quantity is one kilogram of samples. For a few ultra-high value products, the minimum order quantity is 1g.
2.What are your payment methods?
Our payment methods include ,Money Gram,Alibaba,Alipay and T/T.
3.How long is your shipping time?
Under normal circumstances, the goods will be shipped on the same day or the next day after payment is made. It takes about three days for the goods to arrive at the freight forwarder. The international tracking number will be issued on the same day or the next day when the product arrives at the freight forwarder. Due to different countries, the transportation time also varies, which ranges from 7 to 25 days. , please consult customer service for specific time.
4.How can I get the samples?
For some products,we can provide you with free off the shelf samples.You just need to pay for delivery.

5. what services can we provide?
Since the products are mass-produced, customized products, customized purity, and customized packaging are not supported.

        It is used as a reagent in organic synthesis, as a raw material in drug synthesis, and as a structural unit for producing various compounds.It is also used to synthesize various heterocyclic compounds, such as pyridine, pyrimidine and thiophene. In addition, 2- bromo -1- phenyl-penta -1- one is used to synthesize polymers such as polyacrylonitrile, polyvinyl chloride and polyethylene.

Synthetic method
1. Cool the ether solution of 1- phenyl -1- pentanone in an ice bath, then slowly add anhydrous aluminum trichloride solid to the solution, and immediately add liquid bromine (about 0.1 mol equivalent) to the solution after the addition. After stirring for 10 minutes, it can be clearly observed that the reaction solution changes from light orange to colorless. If the color does not change at 0 degree, the mixture is raised to room temperature for several hours. Drop another part of liquid bromine (0.9 mol equivalent) into the solution, and pay attention to the slow drop acceleration, which lasts for more than 5 minutes. After the reaction, sodium bicarbonate aqueous solution was added to the reaction system to neutralize the solution, and the organic layer was separated. The organic layer was dried with anhydrous magnesium sulfate, and the solution was filtered to remove magnesium sulfate solid, and the obtained filtrate was concentrated under reduced pressure to a light-colored oil, and then the residue was separated and purified by column chromatography to obtain the target product 2- bromo -1- phenyl -1- pentanone.

2. 1- phenyl -1- pentanone (1.0 g) and liquid bromine (1.19 g, 7.45 mmol) were dissolved in diethyl ether (20 mL) under argon protection and room temperature, and the obtained mixture was stirred overnight. Quenching the reaction with sodium thiosulfate after the reaction, extracting the reaction mixture with ethyl acetate, drying the combined organic layers with anhydrous magnesium sulfate, filtering to remove magnesium sulfate solids, concentrating the obtained filtrate under reduced pressure to an oil, and separating and purifying the oil by column chromatography to obtain the target product 2- bromo -1- phenyl -1- pentanone.

    2- Bromo -1- phenyl -1- pentanone, named 2-Bromo-1-phenyl-1-pentanone in English, is a colorless liquid at normal temperature and pressure, and needs to be preserved at low temperature. 2- bromo -1- phenyl -1- pentanone can be used as an intermediate in organic synthesis and medical chemistry, mainly for scientific research and the synthesis of drug molecules. 2- bromo -1- phenyl -1- pentanone is an organic intermediate, which can be obtained by bromination of phenylpentanone with sodium bromide. It has been reported that it can be used to prepare histone demethylase inhibitors.