• Thumbnail for Allenes
    group). Allenes are classified as cumulated dienes. The parent compound of this class is propadiene (H2C=C=CH2), which is itself also called allene. A group...
    40 KB (4,305 words) - 04:10, 21 August 2024
  • Thumbnail for Allene Jeanes
    Allene Rosalind Jeanes (July 19, 1906 – December 11, 1995) was an American chemist whose pioneering work significantly impacted carbohydrate chemistry...
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  • Thumbnail for Allene Roberts
    Emma Allene Roberts (September 1, 1928 – May 9, 2019) was an American actress. Roberts was born in Fairfield, Alabama, the daughter of Mr. and Mrs. Frank...
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  • Thumbnail for Allene Crater
    Allene Crater (December 1876 – August 1957) was an American actress born in Denver, Colorado. She became interested in theater while in high school, performing...
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  • a convenient and increasingly important method for the preparation of allenes, a class of compounds often viewed as exotic and synthetically challenging...
    11 KB (1,298 words) - 17:16, 26 September 2024
  • Thumbnail for Allene oxide
    interest. Typical allene oxides require steric protection for their isolation. Certain derivatives can be prepared by epoxidation of the allenes with peracetic...
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  • Allene is a feminine given name. Notable people with the name include: Allene Jeanes (1906–1995), American chemical researcher Allene Ray (1901–1979)...
    353 bytes (71 words) - 01:48, 15 June 2023
  • organic chemistry, the Doering–LaFlamme allene synthesis is a reaction of alkenes that converts them to allenes by insertion of a carbon atom. This name...
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  • Thumbnail for Allene Tew
    Allene Tew Hostetter Nichols Burchard Reuß zu Köstritz de Kotzebue (July 7, 1872 – May 1, 1955) was an American socialite during the Gilded Age who became...
    28 KB (2,950 words) - 10:08, 22 September 2024
  • Thumbnail for Axial chirality
    or by torsional stiffness of the bonds, as in the C=C double bonds in allenes such as glutinic acid. Axial chirality is most commonly observed in substituted...
    7 KB (768 words) - 18:47, 30 May 2023
  • Thumbnail for Allene oxide cyclase
    In enzymology, an allene-oxide cyclase (EC 5.3.99.6) is an enzyme that belongs to the family of isomerases, specifically a class of other intramolecular...
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  • Allene Johnson (born April 20, 1933) is a retired chemical educator who taught in the Summit, New Jersey school system for over 40 years. Johnson was one...
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  • Thumbnail for Jacobus Henricus van 't Hoff
    foundations of stereochemistry. In 1875, he predicted the correct structures of allenes and cumulenes as well as their axial chirality. He is also widely considered...
    17 KB (1,664 words) - 09:15, 13 September 2024
  • Thumbnail for Propadiene
    2nd ed. (the "Gold Book") (1997). Online corrected version: (2006–) "allenes". doi:10.1351/goldbook.A00238 Klaus Buckl, Andreas Meiswinkel "Propyne"...
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  • Thumbnail for Allene Talmey
    Allene Rosamond Talmey (January 11, 1903 – March 13, 1986), later Allene Talmey Plaut, was an American columnist, editor, reporter and a film reviewer...
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  • Thumbnail for Allene Ray
    Allene Ray (born Allene Ray Burch; January 2, 1901 – May 5, 1979) was an American film actress. Born in Devine, Texas, Ray grew up on her father's ranch...
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  • Myers, Andrew G.; Zheng, Bin (1996). "New and Stereospecific Synthesis of Allenes in a Single Step from Propargylic Alcohols". Journal of the American Chemical...
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  • Squirrel Girl (Doreen Allene Green) is a superheroine appearing in American comic books published by Marvel Comics. Created by writer Will Murray and writer-artist...
    72 KB (8,403 words) - 17:44, 24 September 2024
  • Thumbnail for Cumulene
    three or more cumulative (consecutive) double bonds. They are analogous to allenes, only having a more extensive chain. The simplest molecule in this class...
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  • Thumbnail for 1,2-Butadiene
    rubber. It is a colorless flammable gas, one of the simplest substituted allenes. The C4-fraction obtained by cracking and separated by distillation consists...
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  • Thumbnail for Mitsunobu reaction
    Myers, Andrew G.; Zheng, Bin (1996). "New and Stereospecific Synthesis of Allenes in a Single Step from Propargylic Alcohols". Journal of the American Chemical...
    15 KB (1,570 words) - 05:15, 3 September 2024
  • Thumbnail for Lysergic acid
    (+)-Lysergol, and (+)-Isolysergol by Palladium-Catalyzed Domino Cyclization of Allenes Bearing Amino and Bromoindolyl Groups". J. Org. Chem. 76 (7): 2072–2083...
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  • Anthony Eugene Robinson (born September 3, 1986) is an American serial killer who murdered at least 4 women in the Washington, D.C. area and transported...
    14 KB (1,547 words) - 19:40, 20 September 2024
  • Thumbnail for Penta-2,3-dienedioic acid
    of two chemicals called glutinic acid), is an allene-containing dicarboxylic acid. It was the first allene to be synthesized, in 1887, but the structure...
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  • Thumbnail for Hydroamination
    substrates that have been investigated include alkenes, dienes, alkynes, and allenes. For intramolecular hydroamination, various aminoalkenes have been examined...
    22 KB (2,210 words) - 00:46, 6 August 2023
  • have been developed. In the presence of unpolarized alkenes, alkynes or allenes, diimide is converted into dinitrogen with reduction (net addition of dihydrogen)...
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  • Thumbnail for Howard Hughes
    Howard Hughes Holdings Inc. Howard Robard Hughes Jr. was the only child of Allene Stone Gano (1883–1922) and of Howard R. Hughes Sr. (1869–1924), a successful...
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  • Jacqueline Allene Means is an American Anglican priest. On January 1, 1977, she became the first woman to be regularly ordained a priest in the Episcopal...
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  • Thumbnail for Marilyn Hickey
    Marilyn Allene Hickey (born July 1, 1931) is an American Christian minister and televangelist who teaches Bible studies both nationally and internationally...
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  • Thumbnail for Functional group
    Butyl Pentyl Methylene Bridge Methine Alkene Vinyl Allyl 1-Propenyl Crotyl Allene Cumulene Aryl Phenyl Benzyl Alkyne Carbene Only carbon, hydrogen, and oxygen...
    31 KB (1,230 words) - 12:54, 5 September 2024