• The Koch reaction is an organic reaction for the synthesis of tertiary carboxylic acids from alcohols or alkenes and carbon monoxide. Some commonly industrially...
    9 KB (1,125 words) - 13:23, 9 October 2024
  • Gattermann–Koch reaction, named after the German chemists Ludwig Gattermann and Julius Arnold Koch, is a variant of the Gattermann reaction in which carbon...
    6 KB (585 words) - 07:29, 24 September 2024
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    various methods such as the Gattermann reaction, Gattermann–Koch reaction, Vilsmeier–Haack reaction, or Duff reaction; however, in terms of ease and safety...
    8 KB (796 words) - 09:30, 7 August 2024
  • The Gattermann–Koch reaction can be used to synthesize benzaldehyde from benzene. The Gatterman reaction describes arene reactions with hydrocyanic...
    22 KB (2,150 words) - 17:58, 20 October 2024
  • Thumbnail for Carboxylic acid
    and tertiary carbocations, e.g. isobutylene to pivalic acid. In the Koch reaction, the addition of water and carbon monoxide to alkenes or alkynes is...
    26 KB (2,619 words) - 13:56, 13 October 2024
  • Thumbnail for Formylation
    conversion of benzene to benzaldehyde in the Gattermann–Koch reaction). In biochemistry the reaction is catalysed by enzymes such as formyltransferases. Formylation...
    25 KB (2,838 words) - 19:16, 23 November 2024
  • Thumbnail for Julius Arnold Koch
    1897, he discovered, together with Ludwig Gattermann, the Gattermann-Koch reaction—a method of synthesis of benzaldehyde using carbon monoxide. He agreed...
    4 KB (141 words) - 19:51, 9 June 2024
  • Thumbnail for Copper(I) chloride
    chloride, and hydrogen chloride in the Gatterman-Koch reaction to form benzaldehydes. In the Sandmeyer reaction, the treatment of an arenediazonium salt with...
    17 KB (1,571 words) - 13:02, 20 November 2024
  • Thumbnail for Formic acid
    including sulfuric and hydrofluoric acids, however, a variant of the Koch reaction occurs instead, and formic acid adds to the alkene to produce a larger...
    38 KB (3,856 words) - 17:07, 1 November 2024
  • Gattermann aldehyde synthesis Gattermann Koch reaction Gattermann reaction Geminal halide hydrolysis Gewald reaction Gibbs phthalic anhydride process Gilman...
    37 KB (3,428 words) - 16:27, 11 November 2024
  • Thumbnail for Thermite
    When ignited by heat or chemical reaction, thermite undergoes an exothermic reduction-oxidation (redox) reaction. Most varieties are not explosive,...
    50 KB (5,823 words) - 17:58, 12 November 2024
  • Thumbnail for Julia Koch
    She met David Koch on a blind date in January 1991, although they did not continue dating at the time. She later described her reaction: "I'm glad I met...
    18 KB (1,616 words) - 20:43, 20 November 2024
  • Thumbnail for Alkylbenzene
    H2SO4. Gattermann-Koch reaction: named after German chemists Ludwig Gattermann and Julius Arnold Koch, the Gattermann-Koch reaction is a catalyzed formylation...
    8 KB (706 words) - 18:15, 26 October 2023
  • Thumbnail for Carbon monoxide
    the carboxylic acid, a net process known as the Koch–Haaf reaction. In the Gattermann–Koch reaction, arenes are converted to benzaldehyde derivatives...
    73 KB (7,627 words) - 02:23, 21 November 2024
  • Carbonylation (redirect from Koch acid)
    Pd-diphosphines catalyze formation of polyketones. The Koch reaction is a special case of hydrocarboxylation reaction that does not rely on metal catalysts. Instead...
    10 KB (1,257 words) - 15:06, 6 November 2024
  • Gatterman-Koch reaction). A significant quantity of natural benzaldehyde is produced from cinnamaldehyde obtained from cassia oil by the retro-aldol reaction:...
    16 KB (1,420 words) - 12:20, 23 April 2024
  • Thumbnail for Terephthalic acid
    Terephthalic acid can also be made from toluene by the Gattermann-Koch reaction, which gives 4-methylbenzaldehyde. Oxidation of the latter gives terephthalic...
    21 KB (1,980 words) - 15:08, 5 November 2024
  • Thumbnail for Robert Koch
    Heinrich Hermann Robert Koch (/kɒx/ KOKH; German: [ˈʁoːbɛʁt ˈkɔx] ; 11 December 1843 – 27 May 1910) was a German physician and microbiologist. As the discoverer...
    70 KB (8,096 words) - 09:54, 23 November 2024
  • reactions including the Vilsmeier–Haack reaction, the Gattermann Koch reaction and the Reimer–Tiemann reaction. Other electrophiles are aromatic diazonium...
    18 KB (2,168 words) - 20:30, 8 October 2024
  • Thumbnail for Aluminium chloride
    aldehyde groups onto aromatic rings, for example via the Gattermann-Koch reaction which uses carbon monoxide, hydrogen chloride and a copper(I) chloride...
    24 KB (1,821 words) - 23:02, 20 November 2024
  • Thumbnail for Heckler & Koch MP5
    The Heckler & Koch MP5 (German: Maschinenpistole 5, lit. 'Submachine gun 5') is a submachine gun developed in the 1960s by German firearms manufacturer...
    141 KB (10,040 words) - 18:45, 28 October 2024
  • Thumbnail for Heckler & Koch HK416
    & Koch HK416 is an assault rifle chambered for the 5.56×45mm NATO cartridge. It is designed and manufactured by the German company Heckler & Koch. Although...
    79 KB (5,595 words) - 19:21, 5 November 2024
  • Thumbnail for Alkene
    methods are known, including the Horner–Wadsworth–Emmons reaction. The Wittig reaction involves reaction of an aldehyde or ketone with a Wittig reagent (or...
    48 KB (5,130 words) - 00:46, 30 October 2024
  • by hydrocarboxylation of isobutene via the Koch reaction: (CH3)2C=CH2 + CO + H2O → (CH3)3CCO2H Such reactions require an acid catalyst such as hydrogen...
    8 KB (763 words) - 17:47, 17 July 2024
  • Thumbnail for Isobutyric acid
    propylene. It can also be prepared by the high pressure hydrocarboxylation (Koch reaction) from propylene: CH3CH=CH2 + CO + H2O → (CH3)2CHCO2H Isobutyric acid...
    10 KB (808 words) - 09:11, 2 November 2024
  • Thumbnail for Heckler & Koch GMG
    "grenade machine gun") is an automatic grenade launcher developed by Heckler & Koch for the German Army. It is also often referred to as GMW or GraMaWa (Granatmaschinenwaffe)...
    12 KB (742 words) - 01:02, 2 November 2024
  • Thumbnail for Heckler & Koch G36
    The Heckler & Koch G36 (Gewehr 36) is an assault rifle designed in the early 1990s by German weapons manufacturer Heckler & Koch. It is chambered in 5...
    94 KB (6,296 words) - 19:21, 5 November 2024
  • Thumbnail for Ludwig Gattermann
    reaction with magnesium yielded amorphous powders which were more reactive and easier to handle than the substances. The improved Sandmeyer reaction using...
    8 KB (767 words) - 17:27, 18 November 2024
  • Thumbnail for Mycobacterium tuberculosis
    Mycobacterium tuberculosis (M. tb), also known as Koch's bacillus, is a species of pathogenic bacteria in the family Mycobacteriaceae and the causative...
    75 KB (8,272 words) - 05:59, 22 November 2024
  • Thumbnail for Koch network
    Charles G. (born 1935) and David H. Koch (1940–2019), sometimes referred to as the Koch brothers, have become famous for their financial and political...
    135 KB (14,257 words) - 07:19, 17 November 2024