Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides. 4897-84-1, formula is C5H9BrO2, Name is Methyl 4-bromobutanoate. Organic compounds having carbon bonded to bromine are called organic bromides. Name: Methyl 4-bromobutanoate.
Jeon, Jong Yeob;Park, Sungmin;Han, Junyoung;Maurya, Sandip;Mohanty, Angela D.;Tian, Ding;Saikia, Nayan;Hickner, Michael A.;Ryu, Chang Y.;Tuckerman, Mark E.;Paddison, Stephen J.;Kim, Yu Seung;Bae, Chulsung research published ã?Synthesis of Aromatic Anion Exchange Membranes by Friedel-Crafts Bromoalkylation and Cross-Linking of Polystyrene Block Copolymersã? the research content is summarized as follows. Elastomeric anion exchange membranes (AEMs) were prepared by acid-catalyzed Friedel-Crafts alkylation of the polystyrene block of polystyrene-b-poly(ethylene-co-butylene)-b-polystyrene (SEBS) using bromoalkylated tertiary alcs. and triflic acid as a catalyst, followed by amination with trimethylamine. This simple one-step bromoalkylation allowed convenient control of both the degree of functionalization and cation tether length by changing the molar ratio and the structure of the bromoalkylated tertiary alc. The resulting quaternary ammonium-functionalized ionic triblock SEBS copolymers showed a microphase-separated morphol. on the 35 nm length scale. A series of AEMs with different ion exchange capacities and ion tether lengths were systematically investigated by comparing swelling and anion conductivity Because the SEBS AEMs showed high swelling and low dimensional stability in water due to the rubbery nature of SEBS, the hard segment PS units were crosslinked by 1,6-hexanediamine for practical use. The crosslinking of SEBS AEMs reduced water uptake significantly (e.g., 155% vs. 28%) and enhanced their mech. properties. Because the backbone of the SEBS AEMs are composed of all carbon-carbon bonds, they showed good alk. stability, preserving their IEC and OH– conductivity after testing in a 1 M NaOH solution at 80 °C for 500 h. Alk. membrane fuel cell performance was evaluated with the crosslinked SEBS AEM, and a peak power d. of 520 mW/cm2 was achieved at 60 °C under H2/O2 conditions.
Name: Methyl 4-bromobutanoate, Methyl 4-bromobutyrate,also as known as 4-Bromobutyric acid methyl ester, is a useful research compound. Its molecular formula is C5H9BrO2 and its molecular weight is 181.03 g/mol. The purity is usually 95%.
4-Bromobutyric acid methyl ester is a synthetic compound that can be used to inhibit the activity of the G1 phase cyclin-dependent kinases. It has been shown to inhibit protein synthesis by alkylating the amino groups of proteins and fatty acids. 4-Bromobutyric acid methyl ester also inhibits the growth of cancer cell lines, such as renal carcinoma cells. The mechanism of action for this drug is not well understood, but it may be due to its ability to bind with monoclonal antibodies and enter kidney cells by passive diffusion., 4897-84-1.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary