In the realm of organic chemistry, certain molecules stand out for their exceptional versatility, acting as linchpins in the synthesis of complex organic structures. 4-Bromo-2-pentene, identified by its CAS number 1809-26-3, is one such compound. This chemical intermediate, characterized by its unique combination of a double bond and a bromine atom, offers a rich playground for synthetic chemists looking to build intricate molecular architectures.

Understanding the Structure and Reactivity

4-Bromo-2-pentene (C5H9Br) possesses a five-carbon chain with a double bond between the second and third carbons and a bromine atom attached to the fourth carbon. This specific arrangement imbues the molecule with distinct reactivity patterns. The presence of the bromine atom, a good leaving group, makes it highly amenable to nucleophilic substitution reactions. Simultaneously, the allylic nature of the bromine atom (being adjacent to a double bond) further enhances its reactivity, often leading to more stable carbocation intermediates during reactions. The double bond itself is a site for electrophilic addition reactions, allowing for the incorporation of various functional groups across it.

Key Synthesis Reactions and Transformations

Chemists often utilize 4-Bromo-2-pentene in a variety of transformations. For instance, nucleophilic substitution reactions with various nucleophiles like alcohols, amines, or thiolates can yield ethers, amines, or thioethers, respectively. Elimination reactions under basic conditions can lead to the formation of dienes, such as 1,3-pentadiene. Furthermore, its participation in Grignard reactions or other organometallic coupling processes allows for the formation of new carbon-carbon bonds, crucial for building complex carbon skeletons. The ability to buy 4-bromo-2-pentene at high purity ensures that these transformations proceed with predictability and high yields.

Applications Beyond Pharmaceuticals

While its role as a pharmaceutical intermediate is well-established, the utility of 4-Bromo-2-pentene extends to other areas of organic synthesis. It can serve as a precursor for agrochemicals, specialty polymers, and advanced materials. Researchers might employ it in the synthesis of unique monomers for polymerization or as a building block for novel organic electronic materials. The consistent availability from chemical suppliers makes it an accessible tool for academic and industrial research alike. Exploring the price and sourcing options for this compound is a common task for R&D departments aiming to innovate.

Sourcing High-Quality 4-Bromo-2-pentene

For any successful organic synthesis project, the quality of starting materials is paramount. Sourcing 4-bromo-2-pentene from reputable chemical suppliers ensures that the compound meets stringent purity standards (≥99%). This reliability is crucial when working with complex reaction sequences where even minor impurities can lead to significant deviations in product yield or purity. Understanding the market for this compound, including its typical price points and leading suppliers, is an important consideration for any chemical synthesis laboratory.

In essence, 4-Bromo-2-pentene (CAS 1809-26-3) is a highly valuable and versatile intermediate that empowers chemists to achieve sophisticated synthetic goals across various scientific disciplines. Its strategic use is key to advancing research and developing innovative chemical products.