• In organometallic chemistry, metalhalogen exchange is a fundamental reaction that converts an organic halide into an organometallic product. The reaction...
    10 KB (1,200 words) - 17:34, 25 September 2023
  • + NaH → CH3SOCH− 2Na+ + H2 Trityl sodium can be prepared by sodium-halogen exchange: Ph3CCl + 2 Na → Ph3C− Na+ + NaCl Sodium also reacts with polycyclic...
    11 KB (1,261 words) - 00:12, 27 August 2023
  • Thumbnail for Grignard reagent
    "Preparation of t-Butyl-3-Bromo-5-Formylbenzoate Through Selective Metal-Halogen Exchange Reactions". Organic Syntheses. 89: 460. doi:10.15227/orgsyn.089...
    24 KB (2,752 words) - 01:37, 23 October 2024
  • Thumbnail for Organolithium reagent
    limited due to competing side reactions such as radical reactions or metalhalogen exchange. Most organolithium reagents used in alkylations are more stabilized...
    55 KB (5,971 words) - 20:35, 22 July 2024
  • Thumbnail for Alkali metal
    compounds through metal-halogen exchange.: 106  Unlike the organolithium compounds, the organometallic compounds of the heavier alkali metals are predominantly...
    214 KB (23,516 words) - 14:04, 26 October 2024
  • with metals, generally lithium or magnesium, to give organometallic derivatives that function as sources of aryl anions. By the metal-halogen exchange reaction...
    16 KB (1,804 words) - 21:38, 3 June 2024
  • representative of reductive coupling. The reaction proceeds by an initial metalhalogen exchange, which is described with the following idealized stoichiometry:...
    5 KB (527 words) - 22:22, 6 June 2024
  • Thumbnail for 1,3-Bis(diphenylphosphino)propane
    synthesised via a much more controllable (and cheaper) route, via metal-halogen exchange and then metathesis: Br(CH2)3Br + 2 tBuLi → Li(CH2)3Li + 2 tBuBr...
    4 KB (350 words) - 12:36, 28 September 2023
  • Thumbnail for Phenylsodium
    the Alkali Metals: Useful Synthetic Reagents as Strong Bases and Potent Nucleophiles. 1. Conversion of Organic Halides to Organoalkali-Metal Compounds"...
    10 KB (979 words) - 07:12, 21 August 2024
  • replacing the proton. 2-Lithiothiazoles are also generated by metal-halogen exchange from 2-bromothiazole. Electrophilic aromatic substitution at C5...
    12 KB (1,151 words) - 11:33, 2 October 2024
  • aside from the use of metal acetylides as nucleophiles, such a process rarely works well in practice due to metalhalogen exchange and/or the formation...
    11 KB (1,505 words) - 20:21, 12 July 2024
  • with a reducing metal, such as sodium or magnesium, or with an organolithium reagent. Either approach results in metal-halogen exchange to convert the...
    4 KB (395 words) - 11:10, 29 April 2022
  • organolithiums can undergo metal-halogen exchange and then eliminate a lithium salt to give a carbene, and zinc metal abstracts halogens similarly in the Simmons–Smith...
    22 KB (2,401 words) - 05:50, 13 August 2024
  • Dehalogenation (category Halogens)
    interest in organic synthesis, electropositive metals react with many organic halides in a metal-halogen exchange: RX + 2 M → RM + MX The resulting organometallic...
    9 KB (886 words) - 09:31, 7 August 2024
  • Thumbnail for Metal
    A metal (from Ancient Greek μέταλλον (métallon) 'mine, quarry, metal') is a material that, when polished or fractured, shows a lustrous appearance, and...
    94 KB (11,216 words) - 05:01, 30 September 2024
  • Thumbnail for N-Butyllithium
    products of the corresponding halogen–lithium exchanges (C4H9Br or C4H9Cl). Other metals and metalloids which undergo such exchange reactions are organic compounds...
    18 KB (1,856 words) - 02:21, 23 October 2024
  • Thumbnail for Single displacement reaction
    less reactive halogen cannot replace the more reactive halogen: I 2 + 2 KBr ⟶ {\displaystyle {\ce {I2 + 2KBr ->}}} no reaction Metals react with acids...
    11 KB (1,329 words) - 19:21, 2 May 2024
  • Thumbnail for Metal halides
    Metal halides are compounds between metals and halogens. Some, such as sodium chloride are ionic, while others are covalently bonded. A few metal halides...
    13 KB (1,440 words) - 21:35, 4 September 2024
  • replacement of a halogen atom in an organic molecule with a metal atom, resulting in an organometallic compound. In the laboratory, metalation is commonly...
    11 KB (722 words) - 10:04, 16 October 2024
  • Thumbnail for Phenyllithium
    2Li → Ph-Li + LiX Phenyllithium can also be synthesized with a metal-halogen exchange reaction: n-BuLi + X-Ph → n-BuX + Ph-Li The predominant method of...
    8 KB (656 words) - 16:05, 13 June 2024
  • Thumbnail for Post-transition metal
    non-metals of the groups: nitrogen-phosphorus, oxygen-sulfur, and the halogens." Cheronis, Parsons and Ronneberg wrote that, "The transition metals of...
    124 KB (15,306 words) - 16:20, 28 October 2024
  • Thumbnail for Nonmetal
    Nonmetal (redirect from Non-metal)
    behaviors which are unexpected for metals. In aurides (MAu, where M = Li–Cs), gold's behavior is similar to that of a halogen. Gold has a large enough nuclear...
    186 KB (16,953 words) - 11:05, 23 October 2024
  • Thumbnail for Karl Ziegler
    and aryls from metallic lithium and halogenated hydrocarbons via metalhalogen exchange. This convenient synthesis spurred numerous studies of RLi reagents...
    23 KB (2,670 words) - 09:18, 13 September 2024
  • Thumbnail for Group 2 organometallic chemistry
    "Preparation of t-Butyl-3-Bromo-5-Formylbenzoate Through Selective Metal-Halogen Exchange Reactions". Organic Syntheses. 89: 460. doi:10.15227/orgsyn.089...
    17 KB (2,002 words) - 19:38, 11 August 2024
  • coordinate ligands other than halogens to the metal: 2 U + 3 (C5H5)2Hg + HgCl2 → 2 (C5H5)3UCl + 4 Hg Alkaline earth metal complexes have been synthesized...
    13 KB (1,548 words) - 14:33, 18 December 2021
  • Transition metals in the periodic table In chemistry, a transition metal (or transition element) is a chemical element in the d-block of the periodic...
    40 KB (4,504 words) - 06:11, 16 October 2024
  • Thumbnail for Alkaline earth metal
    chemical terms, all of the alkaline earth metals react with the halogens to form the alkaline earth metal halides, all of which are ionic crystalline...
    71 KB (7,264 words) - 13:43, 4 October 2024
  • Thumbnail for Metal carbonyl
    bonds are cleaved by halogens. Depending on the electron-counting scheme used, this can be regarded as an oxidation of the metal atoms: Mn2(CO)10 + Cl2...
    70 KB (7,931 words) - 06:04, 29 May 2024
  • Thumbnail for Isopropylmagnesium chloride
    "Highly Functionalized Organomagnesium Reagents Prepared through HalogenMetal Exchange". Angewandte Chemie International Edition. 42 (36): 4302–4320. doi:10...
    6 KB (574 words) - 16:24, 2 September 2024
  • iodide at 230 °C to give molybdenum(II) iodide. An example involving halogen exchange is given below, involving the reaction of tantalum(V) chloride with...
    30 KB (3,558 words) - 02:08, 12 September 2024